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Electric Sailboat Motor: Range, Cost, Best Kits for Conversion

Today, owning a completely green sailboat has been made possible with electric sailboat motors.

Imagine cruising with the silence of an electric sailboat motor and the ease of use with a simple press on the start button. What’s better is there are no exhaust fumes at all with significantly less maintenance.

It’s so appealing that a lot of sailing liveaboards have made their electric sailboat motor conversion.

However, some sailors are still on the fence, worrying about the range and price of the electric sailboat motor.

If you are one of them, you are in the right place!

This post will guide you through every aspect you need to know about electric sailboat motors to help you make an informed decision.

Besides, you will get professional insights on how to make the electric sailboat motor conversion for your own boat and learn the best electric sailboat motors (with honest reviews).

Table of contents:

• Electric Sailboat Motors: Confusion Explained

Electric Sailboat Motor or Combustion Motor

• Electric Yacht Motor Conversion: Two Solutions
• How to Size an Electric Sailboat Motor

Best Electric Sailboat Motors (with Reviews)

Electric Sailboat Motor: Confusion Explained

Can you go cruising with an electric sailboat motor? Can you put an electric motor on a sailboat? Are there any limitations?

Whether electric sailboat motors are a good fit for your boat is not a YES or NO question. Here we will explain your top worries with statistics and facts. That way, you can make a wise decision according to your situation.

You may hear some complaints about the batteries and range of the electric propulsion.

However, their experience may not suit electric sailboat motors.

In fact, even small electric engines work pretty well in many sailboats. That’s because most of the time, the wind can power the boat, and the motor is just used for docking or in rare times when there is no wind.

Therefore, it makes more sense to learn electric sailboat motor performance in real-world applications.

Here is a test report of a 3 HP electric sailboat motor on an RS21 racing sailboat:

As you can see, the small electric sailboat motor can run at 5.5 mph top speed for one hour continuously.

And there is a big difference in terms of range vs speed for electric sailboat motors:

If you lower the speed, the range and runtime can be greatly extended. The slower you go, the further you’ll get. For example, if you cut your speed in half, the electric sailboat motor can last 7 hours and go 20 miles within one charge.

That’s pretty sufficient if you use the electric yacht motor mostly for docking or as an auxiliary engine.

Faster top speed (and more range) is available with higher power electric sailboat motors depending on your specific requirements. Contact a specialist to design your electric sailboat motor solutions.

Also, don’t forget to get the electric sailboat motor with regeneration (See recommendations below).

That’s to say, when there is a lot of wind and you’re moving rapidly via your sails, they regenerate and store electric power on the batteries to keep you moving at other times. Solar recharging is also a plus.

Essentially, the range depends on how many batteries you have, so it’s not a limitation of electric sailboat motors but energy and batteries.

If you are still worried, you can offset this by getting a diesel generator, which is more efficient than a diesel engine. And it is a range extender when you need it, but for 90% of your motoring that you don’t need the range, you can rely on the electric sailboat motor.

Some of you might be concerned about the extra weight of the batteries.

In fact, an electric sailboat motor with lithium batteries weighs less than a diesel engine, particularly if you include the fuel weight.

If you want a lightweight electric sailboat motor solution, make sure you get one with LiFePO4 batteries . Compared with other marine batteries, they are more compact in design with much less weight and higher energy density.

Some more advanced electric motors for small sailboats (such as Spirit 1.0 Evo) feature an integrated lightweight battery. So you don’t need to worry about the complex wiring to hook it up or extra space to store the battery.

This is a huge plus if you want to use the electric sailboat motor on a tender or dinghy.

Here is also a chart that collects the weight of some popular electric sailboat motors for your reference:

For many people, another big problem with electric sailboat motors is the cost.

It’s true that a gasoline outboard with similar power is a lot cheaper to buy. However, the electric sailboat motor eventually wins in long-term operating cost. That’s especially the case if you are going to do a lot of motoring.

Electric sailboat motors save on fuel and maintenance costs, which can build up to a large amount over time.

Here is a chart that compares the cost of a 3HP electric sailboat motor (coming with a built-in battery) with its combustion counterpart:

That’s to say, you will cover the price difference for electric yacht motors eventually as long as you use it long enough. Click to check the details of the calculation .

What makes the electric sailboat motor even more worthwhile is it saves you a lot of hassles, especially for sailors who only use the engine in and out of the harbor. Dealing with the maintenance of the gas outboard for a 10 minute motor out of and into the harbor is disproportionate and painful.

*The higher horsepower electric sailboat motor may be different in terms of the cost calculation. Check out the outboard motor pricelist by HP for more information.

As you may have already noticed, electric propulsion has already been widely used in the marine industry:

It’s quiet while motoring, clean to handle, environmentally friendly, with less maintenance and operation costs.

The electric sailboat motors are easier to use with dramatically fewer moving parts to break and no worries about being a diesel mechanic to deal with the hard pulling start. You can have it always on, so it is ready whenever you need it.

And it makes even more sense in sailing applications:

You don’t really need to motor much if your plan is to actually sail. If you are completely becalmed, you will probably just need to motor at 2 knots to keep making way, which is easy for electric sailboat motors.

If you mostly use the motor to get into and out of the harbor, the electric sailboat motor also works great for you.

You can always charge up at the dock, motor out of the marina (or even motor to your sailing area or race start), then hoist the sails and when you’re through, the batteries are charged again.

The electric sailboat motor is also useful as a backup (kicker) motor in case your system goes down. That’s why you can see people pushing a lot of big boats with small electric motors. (Click to learn more information about kicker motors .)

Personally, it’s really nice to have an electric auxiliary in the boat – no smelly, messy diesel and motor oil to deal with, a much simpler system with less maintenance, and much, much quieter operation.

However, powerboats tend to have much higher requirements in terms of both power output and runtime. In that case, an electric sailboat motor can be hard to satisfy your needs.

How Do You Size an Electric Motor for a Sailboat?

As a rule of thumb, you will need approximately 1 HP per 550 lb of the displacement of your boat.

Generally speaking, a 3 HP electric sailboat motor can push a sailboat up to 25 ft and a 9.9 HP motor is sufficient for a 30 ft sailboat to motor at a satisfying speed.

However, bear in mind the horsepower you need always depends on your needs and applications.

It’s better to check the data from real-world tests to decide whether the electric sailboat motor is suitable for your specific needs.

For example, the 9.9 HP electric sailboat motor Navy 6.0 allows you to go at 6.9 mph (11.1 kph) on a 30 ft sailboat, and the range can be extended to 46.4 miles if you decrease your speed to 2.9 mph (4.6 kph).

Click to see more test reports with other electric motor and sailboat combinations, and find the electric sailboat motor that suits you best.

If you are still not sure about the size of the electric sailboat motor for you, feel free to leave us a comment and we will get back to you ASAP with professional suggestions.

Electric Sailboat Motor Conversion

Basically, there are two ways for you to convert your sailboat to a clean and quiet electric drive system:

You can either convert your current vessel to electric or buy an engineless yacht and install an electric sailboat motor on your own.

#1. Repower Your Sailboat with Electric Motor

If you decide to replace the diesel engine with an electric motor, you will need to do a lot of preparations:

The DIY approach requires an electric sailboat motor kit (including motor and controller), batteries, a good level of mechanical ability and basic electrical knowledge, as well as some common tools such as a voltmeter.

You will need to take the old engine out for the new electric sailboat motor installation. It’s not an easy task that involves removing the engine mounts and the drive shaft (dealing with the numerous hoses and cables), taking out the engine, exhaust system, fuel tank, and its attendant tubes, etc.

Remember to balance the boat to avoid listing during the electric sailboat motor conversion.

Then in with the new electric sailboat motor. The installation process can be straightforward if you choose the electric sailboat motor kit wisely (See steps below). Furthermore, you can set up solar charging for your electric sailboat motor with solar panels and charger.

Many sailors have recorded their electric sailboat motor conversion process and experience. Be sure to check them out to get some inspiration. For example, Ed Phillips has documented everything which can serve as a guide for newbies to get started.

Mind you there can be a whole heap that can go wrong in designing and maintaining the electric sailboat motor systems. You really need to be totally on top of it if you want decent performance or reliability.

If you are not that technically inclined, it’s better to talk to a specialist first to discuss your plan for a smooth electric sailboat motor conversion.

#2. Install an Electric Motor in a Sailboat

If you own an enginless sailboat, the electric sailboat motor conversion is much easier for you.

All you need to do is to find a reliable electric sailboat motor and install it in simple steps. The whole process can be easily done, even for beginners. Here we take the popular 6 HP electric sailboat motor Navy 3.0 as an example to show you the installation process:

• Step 1 : Rotate the clamps or use the screws to fix the outboard onto the sailboat.
• Step 2: Mount the steering system in the proper position.
• Step 3: Install the tiller on the electric sailboat motor.
• Step 4: Connect the batteries to the electric sailboat motor system.

Click to check the video tutorial that guides you through each step of the installation.

If you are worried about aesthetic issues and want higher horsepower options, an electric inboard motor can be a better suit for your sailboat. If you prefer an inboard motor for your sailboat, contact our OEM team to get an electric propulsion solution tailored to your needs.

Note : You might find some electric trolling motors rated by #s of thrust on the market. Actually, those electric trolling motors for sailboats can only provide limited speed and range. If you are heading into the wind, the trolling motors for sailboats are definitely not an ideal solution.

Once you’ve evaluated if electric sailboat motors are right for you, there are a lot of options for electric systems.

Here are some popular electric sailboat motors with positive reviews from customers worldwide. Fast charger is available for all the models recommended to reduce your charging stress.

#1. 3 HP Spirit 1.0 Evo

If you are looking for an electric motor for a small sailboat, be sure to check out the ePropulsion Spirit 1.0 Evo. It’s suitable for large daysailers or small cruising sailboats under 25 ft.

With the Spirit 1.0 Evo electric sailboat motor, you can go 5.5 mph (8.8 kph) at top speed on the 21 ft RS21 sailing boat, or troll for 20 hours continuously at 2.2 mph (3.5 kph) according to our test .

This electric sailboat motor with regeneration allows you to recover energy from the prop while under sail. It will start to generate power automatically when the sailing speed reaches 2 knots.

As an electric auxiliary sailboat motor, it can also be easily installed on your tender boats or yacht dinghies since it’s portable and easy to transport (with a lightweight integrated battery).

Features You Will Love:

• Come with the industry-first hydrogeneration capability
• Direct-drive technology makes it maintenance-free
• Portable with a 1276Wh large integrated lithium battery for long range
• Safety wristband keeps you safe in case of MOB
• Digital operation keeps you informed of the battery status

Spirit 1.0 Evo Electric Sailboat Motor Reviews:

“Great weekend with my 17′ sailboat powered by the Spirit Evo. This is great. Quiet and reliable. Went at 3/4 throttle for about 1.5hrs when taking it back to boat ramp.” – Robert Taylor

“Very happy with our Spirit Plus. Pushing our Kolibri 560 a 750 Kg sailboat, with ease. Doing about 5.8 km/h at 500W.” – Frank van Asten

#2. 6HP/9.9 HP Navy Evo Series

If you want a little more juice on the electric sailboat motor, check out the ePropulsion Navy Series. It offers 6 HP and 9.9 HP models for your selection and it provides sufficient power for sailboats up to 30 ft.

According to our test , the 6 HP electric motor Navy 3.0 can push the Catalina 25 sailboat (25 ft) at 6 mph (9.6 kph) top speed, while the Olga 33 sailboat (33 ft) can go at 7.5 mph (12 kph) with the 9.9 HP Navy 6.0 motor.

The Navy series electric sailboat motor also comes with regeneration features which can be recharged with hydrogeneration, wind turbine, and solar panel.

• Four controls to fit your sailboat installation and your boating style
• Accompany LiFePO4 batteries (need separate purchase) are more energy efficient
• Digital display offers real-time monitoring of the power and battery
• Magnetic kill switch and safety wristband keep you safe on the boat
• Electric start saves you trouble pulling the cord to start

Navy Series Electric Sailboat Motor Reviews:

“I have a Navy 3.0 with E80 on a Catalina 25 sailboat. It is working well. Currently I am using about 4% battery to go in/out of the marina by boat.” – Aaron Young

“Just finished my 8 weeks sailing journey in the Baltic Sea. The two Navy 3 outboards provide enough power for my 33ft catamaran. The 400W solar panels provided enough energy for engines and all other energy consumed on board with 2-6 persons. The two Navy Batteries provide power for engines and all other on-board electric devices. I never had to use shore power, so totally self-sufficient electric system.” – Martin Hildebrand

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QuietTorque™ 20.0 Electric Motor

$ 9,995.00 Original price was: $9,995.00. $ 8,995.00 Current price is: $8,995.00.

The  QuietTorque 20.0  provides up to 20kW electric propulsion. 48v plug-n-play system for boats to 45ft. 22000lbs. Similar thrust of an 35 to 40hp diesel.

Motors are made to order and have a 2-4 week lead time.

Choose Your Display

• Standard Display
• Large Display

Choose Your Throttle

• Standard Throttle
• Throttle with Binnacle Mount

Choose Your Charge Sensor

• No Charge Current Sensor
• Add Charge Current Sensor

Select Your Battery or Batteries

NOTE: You can shop all our batteries here .

• Lynac 51.2V 100Ah Peak Series Battery (More Details)
• Dakota Lithium 48Vdc 96Ah Battery with 8A charger (More Details)
• Lifeline GPL-4CT (More Details)
• Lifeline GPL-6CT (More Details)

Choose Your Charger

• Add Delta-Q IC1200 Battery Charger (More Details)
• Pay Deposit
• Pay in Full

The  QuietTorque™ 20.0 provides 48Vdc electric propulsion with high sustained output and is ideal for cruisers and day sailors alike. Typically, the QuietTorque ™  20.0 would replace a 25 to 40hp diesel engine. By using dual PMAC (Permanent Magnet AC) motors, Electric Yacht can produce this powerful, compact, Plug-n-Play, light weight, air cooled system and stay within the safe low voltage standard.  Typical battery size is 400Ah at 48Vdc.  These systems can be installed by a competent boat owner using simple tools and the easy to mount Electric Yacht system.  To be prudent, we recommend that a certified marine electric technician review the completed system.  Each system is engineered for your boat to maximize the speed and range of the boat.  The System is backed by Electric Yacht’s three-year limited warranty.

Specifications

Motor type: 2 PMAC* Brushless Voltage: 48 Vdc Current: 400 Adc Max power input: 20.0 kW Weight: 135 pounds Frame: Anodized Aluminum *Permanent magnet Alternating Current

Additional Information

QT20.0 Product Data

QT20.0 Drawing

Standard Features

Designed for hybrid installations using a generator or renewable power sources while underway

• Current sensor monitors charging current providing for accurate SOC readings
• Automatic thermal protection prevents over heating while maintaining maximum possible power under all operating conditions
• Auxiliary cooling fan provides for high sustained output even when sharing space with a diesel generator

Motor Mounts Adjustable Mounts to current engine stringers

Throttle Anodized Al waterproof throttle with key & neutral lock

Digital Display

• State of Charge (SOC)
• Voltage, Current, Power and motor RPM
• Program battery type and size
• Time to Discharge based on current power consumption, updated in real time
• Programmable regeneration and max power
• Monitor charge and discharge current and power plus motor and motor controller temperature
• Current sensor for monitoring charging current, ensuring accurate SOC calculation when running a generator or renewable energy sources

4″ flange coupler (Hurth/Borg Warner)

Power Switch Blue Sea two position switch

Relay 500amp vacuum relay

Fuse Class-T fuse & holder

The top of this web page is an Illustrated Guide with photos of the motors and specifications to the right. At the bottom of the page is a Sortable/Searchable Table that lets you compare motors easily. If you are going to be using the table extensively the page is best viewed on a computer rather than smartphone or tablet.

• Illustrated Guide

The motors are organized in alphabetical order by manufacturer, then by model line. For the specifications we have tried to make it a user friendly as possible. If there are 3 models in the line, we will give the specs for each model with a comma in between. If there are many models, we give a range from without lining the specs up with specific models.

• Sortable/Searchable Table

The table can be searched with any keyword – manufacturer, for instance, or can be sorted by any of the columns: Peak kiloWatt power, Continuous kiloWatt power, estimated HP equvalent, Voltage, Dimensions (Length, Width, Height), Weight, RPMs, Type of motor and cooling system (air, liquid, water), and whether it is regenerative – capable of recharging when the boat is under sail propulsion.

All specifications are taken from the manufacturers’ websites or brochures without any independent verification. There is a lot of variety in the way manufacturers detail the attributes of their products, particularly when it comes to ‘Power’. Some use peak power as the measurement, some use continuous power, and there are other variations. Some quote minimum RPMs for their motors, others quote maximum RPMs. There is also no set standard for ‘horsepower equivalent’. We have tried to present the information as close as possible to an ‘apples to apples’ comparison.

The photographs and drawings are from the manufacturers’ websites and are not shown in any consistent scale.

Power Ratings – measured in kiloWatts kW  power rating quoted is taken from the manufacturer website. Some quote only peak power or continuous power, some quote input power and output power. We have indicated what the measurement is, although in the table we have used peak power as equal to input power and continuous as equal to output. power. HP is ‘HorsePower equivalent’ so that you can get an idea of the power of the motor in comparison to a HP rating you might be more familiar with. As noted above, there is a lot of leeway in how this is interpreted. When manufacturers have provided an HP equivalent we have used that.

• IN THE TABLE , when no HP equivalent has been provided, we have used the continuous power and multiplied it by 1.3 to indicate HP equivalent. We have noted it with an asterisk * when we have done this.

Voltage  is most often referred to on the sites as simply ‘Voltage’. Some indicate nominal or peak, we have used nominal and indicated if peak is also referenced.

Current  is noted when the manufacturer supplies the information. It is not included in the table.

Torque is shown in Newton metres, Nm. A Nm is about 3/4 of a foot-pound, or conversely, a foot-pound is about 1 and 1/3 Nm.

Dimensions of the motors and shaft are shown in millimetres – mm. There are about 300 mm in 1 foot, or about 25 mm in 1 inch.

Weight is in kilograms. A kilogram is 2.2 pounds.

Motor Types 
There are advantages and disadvantages to each kind of electric motor. Some manufacturers use abbreviations to describe their motors, others use the full words. We have used whatever the manufacturer prefers, but when abbreviations are used, this is what they mean:

BLDC: BrushLess Direct Current

PMAC: Permanent Magnet Alternating Current

Information on this page updated August 12, 2024

You may also want to check our Directory of Electric Boat Motor manufacturers, dealers and distributors around the world, or the Plugboats Marketplace of electric boat motors for sale.

Manufacturers in this Buying Guide: Bellmarine • Combi • Damoto • Elco • Electric Yacht • Electrine • EPTechnologies • ePropulsion • E-TECH • Fischer Panda • GreenStar Marine • Huracan • Krautler • Lynch • Mitek • Molabo • NT Systems • Oceanvolt • Piktronik • Synapseo • TEMA • Thoosa • Torqeedo • waterworld

Click on the Manufacturer’s name or red cross on right hand side to open and close window with information and links for that company’s electric electric inboards

Click »» here to see Bellmarine motors for sale from vendors in the Plugboats Market

»» Bellmarine website (EU)          »»  Bellmarine website (USA) »» Bellmarine catalogue (EU)      »»  Bellmarine catalogue (USA)

Bellmarine is a very well established electric boat motor company with a history going back to 1999. They have now been purchased by and are merged with Transfluid, a large scale industrial motor manufacturer. Bellmarine offers a wide range of electric inboard motor configurations, both direct drive shaft and reduction geared. They range from 2 kW to 130kW and come in four model lines: the straight drive Drivemaster, dual motor ModularMaster, geared Thrustmaster and high power Shaftmaster. They are sold as complete systems with optional extras available.

Bellmarine DriveMaster Air Cooled Series 9 Models: DriveMaster 2A, 5A, 7A, 8A, 10A, 15A, 25A, 35A, 50A

• kW : Peak: From 2kW – 50kW | Continuous: From 1.5kW – 40kW • Voltage : 48V – Models 2A, 5A, 7A, 10A | 96V – Models 8A, 15A | 144V – Models 25A, 35A, 50A
• Motor Type : Permanent Magnet AC (PMAC)
• Cooling : Air cooled
• RPM :  1500
• Includes : Motor with mounting brackets and silent blocks • Motor with integrated thrust bearing • Vector control inverter IP65 • NMEA2000 compatible (Apply Transfluid) • Main switch and main fuse • DC-DC converter 12 Vdc • 5m cable for display, lever, key • Quick install / easy connect / plug and play
• Available : Regeneration (with upgrade to battery monitor), Control throttle, display, cooling kit, coupling, shaft with propeller
• Country of Manufacture : Netherlands/Italy
• Price : NA on website

Bellmarine DriveMaster Liquid Cooled Series 9 Models: DriveMaster 3W, 7W, 10W, 15W, 20W, 20W-EVO, 30W, 45W, 55W

• kW : Peak: From 3kW – 55kW | Continuous: From 2.5kW – 45kW • Voltage : 48V – Models 3W, 7W, 10W, 15W, 20W-EVO | 96V – Model 20W | 144V – Models 30W, 45W, 55W
• Cooling : Liquid cooled
• Includes : Motor with mounting brackets and silent blocks • Motor with integrated thrust bearing • Vector control inverter IP65 • NMEA2000 compatible (Apply Transfluid) • Main switch and main fuse • DC-DC converter 12 Vdc 5m cable for display, lever, key • Quick install / easy connect / plug and play • Inlet and outlet liquid connections
• Available : Control throttle, display, cooling kit, coupling, shaft with propeller

Bellmarine ModularMaster Series 3 Models: ModularMaster 40W-EVO, 40W, 60W

• kW : Peak: 40, 40, 60 | Continuous: 30, 30, 50 • Voltage : 48V – 40W-EVO | 96V – 40W | 144V – 60W
• Includes :  True redundancy in case of one motor failure • Aluminum made split power drive • Mounting brackets and silent blocks • Live PTO available • Vector control inverter IP65 • NMEA2000 compatible (Apply Transfluid) • Main switch and main fuse • DC-DC converter 12 Vdc • 5m cable for display, lever, key • Quick install / easy connect / plug and play • Inlet and outlet liquid connections• Closed loop liquid cooling size XL mounted aboard
• Available : control throttle, display, cooling kit, coupling, shaft with propeller
• Country of Manufacture : Netherlands / Italy

Bellmarine TorqueMaster Series 2 Air cooled Models: TorqueMaster 20A, 25A 7 Liquid cooled Models: TorqueMaster 20W-EVO, 25W, 35W, 45W, 65W, 100W, 130W

• kW : Peak: 20 – 130 | Continuous: 15 – 100 • Voltage : 48V – 20W-EVO | 96V – 20A, 25W | 144V – 25A, 35W | 288V – 65W, 100W | 384V – 130W
• Cooling : See above
• RPM :  20W-EVO – 1500, all other Models 3000
• Includes : Motor with mounting brackets and silent blocks • Drop Box with integrated thrust bearing – 225 mm offset • Vector control inverter IP65 • NMEA2000 compatible (Apply Transfluid) • Main switch and main fuse • DC-DC converter 12 Vdc • 5m cable for display, lever, key • Quick install / easy connect / plug and play • Dropbox aluminum made – no cooling needed – low noise and low vibration • Oil temperature sensor • Elastic coupling between motor and Dropbox • DIN120 output (SAE 1410 upon request) – “U” drive possible

Bellmarine ShaftMaster Series 6 Models: ShaftMaster 25W, 35W, 45W, 64W, 100W, 130W

• kW : Peak: 25kW – 130kW | Continuous: 20 – 100 • Voltage : 96V – 25W | 144V – 35W | 288V – 45W, 65W, 100W | 384V – 130W
• Motor Type : Motor Type : Permanent Magnet AC (PMAC)
• RPM :  3000
• Includes : Motor with mounting brackets and silent blocks • Live Pto available • Marine gear with integrated thrust bearing (up to 130 kW) • Oil temperature sensor • Output offset 103 mm • Elastic coupling between motor and transmission • Vector control inverter IP65 • NMEA2000 compatible (Apply Transfluid) • Main switch and main fuse • DC-DC converter 12 Vdc • 5m cable for display, lever, key • Quick install / easy connect / plug and play • Inlet and outlet liquid connections • Throttle lever (TFC) • Self priming pump (mechanical) mounted aboard • Oil-water cooler mounted aboard • Closed loop liquid cooling size XL mounted aboard

»» Combi website

Combi Outboards was founded in 1979 in Giethoorn (‘the Dutch Venice’) to supply rental boats with clean electric power. It is now a leading international supplier of electric propulsion solutions for the maritime market. Combi inboards have all of the operating components in one housing, ready to plug in to batteries, throttle and monitoring systems. Motors are available both AC asynchronous (induction) and BLDC Permanent Magnet. The two larger inboards are dual motor, and can be operated on the Master / Slave principle but can also sail on a single motor. 

Combi Inboard 5 Models: CI-3.5, CI-5, CI-7.5, CI-10, CI-16, CI-20

• kW : From 3.5kW to 20kW • Voltage : 48V • Current : From Nominal –73 / Cruising speed – 50 to Nominal – 417 / Cruising – 240 • HP : From 9HP to 33HP
• Motor Type : Brushless AC asynchronous • OR • Brushless DC Permanent Magnet (PMDC) Cooling : CI-3.5 Air cooled, all others liquid cooled
• RPM :  From 1200 to 1500
• Shaft (cm) : Can be connected to all common propeller shaft sizes
• Includes : Our systems are constructed in such a way that all components are used in a motor housing. You just need to connect only the power cables. The engine foundation is prepared so that it is easy to install.
• Country of Manufacture : Netherlands

»» Damoto website

Damoto is a Dutch developer, manufacturer and distributor of an extensive range of premium electric inboard motors from 2kW to 40kW nominal. The first model dates from 2005 with more than 3000 boats equipped with it, including recreational sloops, charter and rental boats. The motors are now released under the name Damoto eFLOW but have been well known in the international maritime industry for many years.

Damoto eFLOW Original Series 5 models: eFLOW 2.0 Air, eFLOW 2.5 Air, eFLOW 3.0 Air, eFLOW 6.0 Air, eFLOW 11.0 Air

• kW : Nominal: 2kW to 11kW | Peak: 3kW to 15kW max
• Motor Type: Brushless 3 Phase Asynchronous • Cooling: Air cooled
• IP : IP66
• Includes : stainless steel motor frame with silent blocks, motor, thrust bearing, controller in stainless steel casing incl. marine software & PC/handheld connector for motor tuning, main power contactor & fuse, controller cable with connectors (Plug-n-Play)
• Available : Displays, throttle levers, shaft couplings
• Country of Manufacture : Netherlands / Europe
• Price : Not available on website

Damoto eFLOW Liquid Original Series 8 models: eFLOW 3.0 Liquid, eFLOW 5.0 Liquid, eFLOW 10.0 Liquid, eFLOW 15.0 Liquid, eFLOW 20.0 Liquid, eFLOW 30.0 Liquid, eFLOW 40.0 Liquid Dual Motor, eFLOW 14.0 Liquid 4Hybrid Dual Shaft

• kW : Nominal 3kW to 40kW | Peak: 6kW to 80kW
• Motor Type: Brushless 3 Phase Asynchronous • Cooling: Liquid cooled
• Includes : stainless steel motor frame with silent blocks, motor with liquid inlet & outlet, thrust bearing, controller in stainless steel casing incl. marine software & PC/handheld connector for motor tuning, on-board power converter (12V) integrated in controller casing, main power contactor & fuse, controller cable with connectors (Plug-n-Play)
• Available : Displays, throttle levers, cooling kits, shaft couplings

Damoto eFLOW Air All-in-One Series 3 models: eFLOW 2.0 Air AiO, eFLOW 3.0 Air AiO, eFLOW 6.0 Air AiO

• kW : Nominal 2kW to 6kW | Peak: 6kW to 80kW
• Includes : stainless steel housing, motor with silent suspension, thrust bearing, controller module incl. marine software & PC/handheld connector for motor tuning, main power contactor & fuse, connectors on box front (Plug-n-Play), wired & tested
• Available : throttle levers, shaft couplings

»» Elco website

Elco (Elco Motor Yachts) is the oldest electric boat motor company in the world, having been started in 1893 as the the Electric Launch Company to supply electric boats for the Chicago World’s Fair. It offers a full range of outboards, inboards and hybrids. Their Plug n Play system has all wiring and active power components in a marine grade aluminum casting rated IP-65. Can be purchased from the Elco website along with batteries, options and accessories, leading to a one-price checkout. They also have a ‘ Find My Motor ‘ calculator on the site.

Elco Inboards 6 Models: EP-6, EP-12, EP-20, EP-40, EP-70, EP-100

• kW : Peak: From 4.4kW – 73.5kW | Continuous: From 2.5kW – 42.5k • Voltage : From 36Vdc to 144 Vdc • Amps : 70A – 295A • HP : 6HP – 100 HP
• Dimension s: From L: 17” / W: 16.22” / H: 15.8” to L: 35”  /  W: 18.82”  /  H: 19.25” 
• Includes : Motor and controller.
• Available : Motor mounts, shaft couplers, batteries, battery monitor, chargers, cables, and other accessories
• Country of Manufacture : USA
• Price (does not include options) : $US 7,000 – 21,000

Electric Yacht

Electric Yacht is one of the premier US suppliers of electric motors for sailboats with a  Plug-n-Play system designed for DIY installation by “ a competent boat owner using simple tools and the easy to mount Electric Yacht system “. Their systems offer regenerative power while under the sail. 10 years of proven production with over 450 installs. 3 Year Warranty.

Electric Yacht QuietTorque single motor inboards 3 Models: QT5, QT10, QT10 Sport

• kW : Input – 2.5kW – 30kW, Continuous 2kW – 8kW • Voltage : 24, 36 or 48V for Quiet Torque 5.0, all others 48V • Current : 100A – 200A • HP : 10-25
• Motor Type : PMAC (Permanent Magnet Brushless AC) • Cooling : Air cooled • IP :
• RPM : 
• Dimensions : L: 432mm, W: 245mm, H (with mountings): 342mm Adjustable mountings • Weight : 40 lbs, 70 lbs
• Includes : The motors are sold as systems with everything included except the battery, which can also be purchased from the company. The systems can be purchased directly from the website.
• Price : $US 5,000 – 9,000

Electric Yacht QuietTorque dual motor inboards 6 Models: QT20, QT30-Air-Cooled, QT30-Liquid-Cooled, QT40, QT45, QT60.0

• kW : Input – From 20kW – 60kW Continuous – From 16kW – 52kW • Voltage : 48V – QT20, QT30-Liquid-Cooled 72V – QT30-Air-Cooled, QT40 96V – QT45, QT60 • Current : NA • HP : From 25 – 80
• Motor Type : PMAC (Permanent Magnet Brushless AC) • Cooling : Air cooled – QT20, QT30-Air-Cooled, Liquid cooled – QT30-Liquid-Cooled, QT40, QT45, QT60 • IP : NA
• RPM : NA
• Torque : NA
• Dimensions : L: 673mm, W: 534mm, H (with mountings): 534mm Adjustable mountings • Weight : From 135 lbs to 200 lbs
• Price : $US 14,500 – 18,000

»» ELECTRINE website

ELECTRINE is a Korean manufacturer which has focused on maritime electrification since 2010, when the idea of electric mobility was still relatively uncommon. The company was known as LGM until 2020 and has had a consistent R&D effort for many years. They manufacture electric outboards, inboards and saildrives as well as accessories and Lithium-ion batteries using a Carbon Nano Tube heat exchanger technology. There are 7 models in the eINBOARD Line, the ZI40, ZI60, ZI90, ZI115, ZI180, ZI270 and ZI350

E-ELECTRINE e-INBOARD line 7 Models: ZI40 (shown), ZI60, ZI90, ZI115, ZI180, ZI270, ZI350

• kW : (Max): 43, 60, 110, 150, 173, 200, 250 • Operating Voltage (Vdc): 72~96, 288~384, 288~384, 288~384, 288~384, 500~738, 500~738, 500~738
• Motor Type : N/A
• RPM (Max):  8006, 7160, 10,250, 8000, 6204, 3500, 3375
• Torqu e (Max) Nm: 72, 167, 255, 251, 555, 2100, 2700
• Weight | Dimensions (kg | mm) N/A | 390 x 360 x 323, N/A | 390 x 360 x 323, 93.5 | 665 x 468 x 476, 93.5 | 665 x 468 x 475, N/A | N/A, 500 | 902 x 1200 x 733, 500 | 902 x 1200 x 733
• Country of Manufacture : Korea

EPTechnologies

»» EPTechnologies website

EPTechnologies is a complete marine propulsion provider for electric and hybrid vessels. The company specializes in custom electric and hybrid systems, but also has ‘off the shelf’ motors, including the drop-in Stern Drive unit below. The company delivers complete systems including batteries designed and built by EPTechnologies.

EPTechnologies Drop In Unit

• Voltage: 400
• Other: This motor system has been designed by EPTechnologies as a complete drop-in unit for a Mercury Sterndrive. Includes all batteries, controllers and accessories
• Country of Manufacture : Denmark
• Price : Contact EPTechnologies

EPTechnologies Electric Motor

• For boat sizes 60′-250′
• kW (Continuous) : 400 (Peak) : 700
• Torqu e (Max) Nm: 7800
• Other : Can be stacked together for 800kW or 1400kW peak

ePropulsion

Click here to view motors from ePropulsion dealers in the Plugboats Marketplace

»» ePropulsion website

ePropulsion was established in 2012 and is led by a team of technology entrepreneurs that are focused on developing uncompromising, superior products. It was the first company to launch a brushless, direct-drive electric outboard motor in the market. ePropulsion offers a portfolio of electric outboard motors – some of which offer hydrogeneration – pod drives, and inboard motors. The company is focused on products and services for all kinds of electric boats from dinghies and fishing boat to sailing boats to commercial and leisure motor vessels up to 100-feet and displacement of 200 tons.

ePropulsion I-Series T hree (3) models: I-10, I-20, I-40

• kW : 60kW to 140kW • Voltage : H-100: 540 VDC
• Motor Type : permanent magnet motor technology • Cooling : I-10 Air cooled | I-20 & I-40 Water cooled (air cooling optional) • IP : IP67
• RPM :  1500 all models
• Torque : 56 Nm | 111 Nm | 222 Nm
• Dimensions : I-10: 565 x 295 x 380 mm | I-20: 580 x 330 x 380mm | I-40 860 x 485 x 420mm • Weight : 43kg | 45kg | 75kg
• Includes : Weather & impact resistant metal housing contains integrated motor, gearbox, electronic control system, ECU, thermal management system and suspension, Smart 5” Display, ePropulsion Smart System Architecture (eSSA), Advanced driver assistance system (ADAS), Wired & tested, plug & play installation to new boat or retro-fit to existing shaft, NMEA 2000 compatible, CAN Bus communication, Fault diagnosis system & full redundancy design
• Available : Smart throttle, G102-100 battery, propeller, air-cooling, HVAC System, shaft and coupling, charger, remote data access & fleet management with IoT connectivity service
• Country of Manufacture : China
• Price : On application

ePropulsion H-Series Four (4) models available: H-60, H-85, H-100, H-140

• kW : 10kW | 20kW | 40kw • Voltage : 86~115 VDC all models
• Motor Type : permanent magnet motor technology • Cooling : Water cooled • IP : IP67 
• RPM :  H-100: 1150
• Torque : 797 Nm
• Dimensions : H-100: H 433mm  x W 433mm x D 315mm • Weight : H-100: 190kg
• Includes : Weather & anti-corrosion metal housing contains integrated motor and  gearbox, high torque density (max 2000Nm), modular design to extend range and power with extra motors, batteries and controllers, high accuracy position feedback, Boating IoT system enables remote monitoring and integrated management, Customised data for speed, power, track, mileage, safety alarm etc., NMEA 2000 compatible
• Available : Controller, remote control and display – single & dual controls, custom batteries 

»»  E-TECH website

E-TECH is a subsidiary of boatbuilder Starboats that was started in 2008 because they were dissatisfied with other electric motor offerings in the market at the time. The company has developed fixed pods, steerable pods and outboard motors that all utilize an in-water BLDC (BrushLess DC permanent magnet) pod motor in a watertight aluminum casing. The inboard motors are designed to fit any engine bed and any propeller shaft. For in-line hybrid applications, there are shaft endings on both ends of the engine to make an easy and quick in-line installation.

Click here to view motors from E-TECH dealers in the Plugboats Marketplace

E-Tech Standard Inboards 6 Models: 4WG, 7WG, 13WG, 18WG, 23WG, 35WG

• kW : From 4.3kW, 7.1, 11.9, 16.7, 21.5, 33.7 (power measured on the shaft) • Voltage : 48V, 48V, 48V (4WG, 7WG, 13WG) | 72V – 18WG | 96V – 23 WG, 144V – 35WG • HP : 6, 9.5, 16, 23, 30, 45
• Motor Type : Brushless permanent magnet BLDC • Cooling : Water cooled •  IP : 67
• RPM :  (min) From 1100, 1200, 760, 1140, 1520, 2500
• Shaft : 25mm (4WG, 7WG) or f 30mm (10WG, 15WG, 20WG), 8mm spline
• Includes : Controller, battery monitor / display, cabling, joystick (side or top mounting), integrated cooling circuit for controller with Quick-Click connections, main switch, main fuse.
• Country of Manufacture : Poland

E-Tech High Torque Inboards 4 Models: 13 Pod, 18 Pod, 23 Pod, 35 Pod

• kW : From 11.9 kW, 16.7 kW, 21.5 kW, 33.7 kW (power measured on the shaft) • Voltage : 48V, 72V, 96V, 144V • HP : ≈ 16, 23, 30, 45
• RPM :  (min) From 760, 1140, 1520, 2500
• Shaft : f 30mm, 1:10 conic

Fischer-Panda

»» Fischer-Panda website

Fischer Panda is one of the world’s best known manufacturers of marine generators but are also manufacturers of high quality electric boat motors, sometimes marketed under the ‘Whisperprop’ name. They have an “EasyBox” system that is intended to take the guesswork and complication out of purchasing electric boat motors. There are various sample configurations on their website displaying how the EasyBox system is laid out in different boats.

Fischer Panda Easybox DE-Shaft systems 5 Motors: A06-140-6-SH, A50-160-6-SH, B00-150-8-SH 10 kW, B00-150-8-SH 20 kW, B00-300-8-SH 20 kW

• kW : (continuous) 3.5kW – 20kW • Voltage : 48V • Current : • HP :
• Motor Type : PMAC • Cooling : Water
• RPM : 600 – 2500
• Torque : 28Nm – 320Nm
• Dimensions : L: 400mm – 560mm W: 270mm H: 270mm • Weight : 15kg – 96kg
• Includes : EasyBox control, GD2 control panel, throttle
• Available : Battery bank, charger, shore power connection, 230V adaptor
• Country of Manufacture : Germany

GSM Electric (formerly Greenstar Marine)

»» GSM Electric website

GreenStar Marine was founded by a group of Swedish engineers in the 1990s to develop a series of electric propulsion systems, including a patented regenerative technology. All of the company’s systems are direct drive one-gear and complete except for batteries. The website has an interactive tool that shows approximate run times for different sized boats and battery/motor configurations.

GreenStar E-Line 2 Models: E-10, E-20

• kW : Peak – 3.5kW, 5.5kW | Nominal – 2.1kW, 4.2kW • Voltage : 24V, 24V • HP : 10, 20
• Motor Type : Brushed DC • Cooling : Air cooled
• RPM :  1000, 1000
• Torque : Nominal: 20 Nm, 40Nm | Peak: 40Nm, 50Nm
• Includes : Motor mountings, control system, basic system monitor, battery charger, monitoring, speed control, shore power system, cables, propeller shaft with low friction bearings, fixed propeller
• Available : Hydrogeneration, folding propeller, extra DC/DC
• Country of Manufacture : Sweden

GreenStar P-Line 3 Models: P-10, P-20, P-35

• kW : Peak – 10kW, 10kW, 30kW | Nominal – 2.5kW, 5.5kW, 11kW • Voltage : 48V, 48V, 48V • HP : 10HP, 20HP, 35HP
• Motor Type : Brushless AC • Cooling : P-10 – Air cooled | P-20, P-35 – Water cooled • IP : 65 or higher classed components
• RPM :  1250, 1250, 1250 •
• Torque : Nominal: 20 Nm, 45Nm, 85Nm | Peak: 75Nm, 85Nm, 130 Nm
• Includes : Hydrogeneration, motor mountings, advanced control system, system monitor, battery charger, monitoring, speed control, shore power system, cables, propeller shaft with low friction bearings, fixed propeller
• Available : Folding propeller, extra DC/DC

»» Huracan website

Huracan was founded at the beginning of 2012 in Venice with the goal of building entirely electric marine motors with the highest reliability of any on the market. The Thor motor is sold in a housing that includes the controller, with throttle, displays, monitors and other accessories sold separately.

Huracan Thor NOTE : The information for Huracan is presented in a different format from other manufacturers because the Thor is the only model, which provides different power ratings at different motor speeds.

• kW : 10kW at 3000 rpm | 20kW at 4000 rpm  | 30kW at 5000 rpm | 40kW at 5500 rpm • Voltage : 220V • Current : NA • HP : NA
• Motor Type : NA • Cooling : Water cooled • IP : 69
• RPM :  3000 – 5500
• Torque : (at axles): 30Nm at 3000 rpm | 49Nm at 4000 rpm  | 56Nm at 5000 rpm | 70Nm at 5500
• Dimensions : L: 543 mm  H: 300mm W: 191mm • Weight : 40 kg
• Available :
• Country of Manufacture : Italy

»» Kräutler website

Kräutler is a long-established Austrian manufacturer of industrial electric motors. They began construction of electric boat motors in the 80’s mainly because they could not find a product that would live up to the standards of founder Oswald Kräutler. They make motors for industrial and ship use as well as recreational boats and offer a wide range of inboards for any size boat or usage. Krautler has 3 lines of electric inboard motors. The WAd and WAz lines are direct drive and run from powers of 2.0kW to 25kW (WAd) and 6kW to 37kW (WAz). The WA line is made up of motors from 30kW to 100kW, for high speed / planing boats.

Krautler WAd and WAz line WAd – 11 Models WAd 2.0AC, WAd 3.0AC, WAd 4.3AC, WAd 5.0AC, WAd 6.0AC, WAd 8AC, WAd 11.0AC, WAd 15.0AC (48V, Air), WAd 15.0AC (96V, Water), WAd 18.5AC, WAd 20.0AC WAz – 10 models WAz 6,0AC, WAz 8,0AC, WAz 11,0AC, WAz 15,0AC (Air), WAz 15,0AC (Water), Waz 18,5AC, WAz 20,0AC, WAz 25,0AC, WAz 30,0AC, WAz 37,0AC

• kW : (Output) From 2.5kW – 37kW • Voltage : 24V – 144V • Current : 104A – 292A • HP : 3.5 – 50 HP
• Motor Type : • Cooling : Air – 6,0 models to 15,0 models (WAd and Waz), Water for 18,5 models to 37,0 WAz model
• RPM :  NA
• Dimensions : • Weight :
• Includes : Controller, throttle, monitor, display, cables
• Country of Manufacture : Austria

Krautler WA High Speed line 6 Models: WA 100/30, WA 150/40, WA 350/50, WA 350/60, WA 500/80, WA 500/100

• kW : (Output) From 30kW – 100kW • Voltage : 100V – 500V • Current : NA • HP : 45 – 130 HP
• Motor Type : • Cooling : Water
• Includes : Battery, controller, throttle, monitor, display, cables

»» Lynch website

The Lynch motor was invented by Cedric Lynch in 1979 – a unique axial gap permanent magnet brushed DC motor with high efficiency. The company offers three lines – the direct drive Yellowtail, geared drive Marlin and dual motor Swordfish. Motor systems include motor in mounting frame, controller, electronics, throttle and basic battery monitor and control cables. (options available on throttles and monitors) Lynch has 3 lines of electric inboard motors: the Yellowtail, Marlin and Swordfish, although the Yellowtail ‘line’ is only one motor.

Lynch Yellowtail

• kW : Peak – 6.0kW, Continuous – 2.5kW • Voltage : 24 • Current : 120/Peak 250A • HP : 5 – 10
• Motor Type : • Axial Flux ‘Pancake’ Permanent Magnet DC • Cooling : NA • IP : NA
• RPM : 1080 • Efficiency : 88%
• Torque : 16/Peak 35Nm
• Dimensions : NA • Weight : Motor: 14 kg Control  box: 12 kg
• Includes : motor in mounting frame, controller, electronics, throttle and basic battery monitor and control cables.
• Available : options on throttles and monitors
• Country of Manufacture : UK

Lynch Marlin : Marlin 5 Single, Marlin 8 Single, Marlin 13 Single

• kW : Peak – 14kW, 14kW, 26kW • Voltage : 48V, 48V, 72VDC • Current : 140/Peak 350A, 180/Peak 350A, 200/Peak 400A • HP : 10-20, 17-25, 35-50
• RPM : 2160, 2160, 3240 • Efficiency : 90%
• Torque : 18/Peak 38Nm , 36/Peak 44Nm, 36/Peak 72/Nm
• Dimensions : NA • Weight : Motor: 21 kg • Controller: 12 kg (14kg on model 13 Single)

Lynch Swordfish : Swordfish 16V Twin, Swordfish 26V Twin

• kW : 16kW/Peak 30, 26kW/Peak 53 • Voltage : 48VDC, 72 VDC• Current : 180A/350 Peak, 200A/400 Peak • HP : 48-60, 60-75
• RPM : 2160, 3240 • Efficiency : 90%
• Torque : 72Nm/144 Peak,
• Dimensions : NA • Weight : Motor: 27 kg Controllers: 14.5 kg X 2 (29kg)
• Includes : motors in mounting frame, controller, electronics, throttle and basic battery monitor and control cables.

»» Mitek website

Mitek Srl manufactures permanent magnet synchronous electric motors that can be used both as propulsion engines and generators according to the highest quality standards for industrial and marine markets.With more than 10 years of experience, it is a flexible partner that provides competitive products and services for sustainable mobility. Its activities focus on the design, engineering and production of innovative high torque electric motors, which are lighter, smaller and more efficient.

Mitek Inboards : 6 Models: 200015, 200020, 260038, 260054, 260061, 260115

• kW (Continuous / Peak) : 10 / 15 to 85kW/Peak 115 • Voltage : 48V, 96V, 192V, 384V• Current : From 200A/310 max to 320A/600max • HP Continuous / Peak : From 14 / 20 to 114-154
• Motor Type : NA
• RPM : From 1700 to 2200
• Torque : From 88Nm/Peak 205 to 380Nm/Peak 540
• Dimensions : L: 388mm – 588mm W: 370mm H: 370mm • Weight : 32 – 69 kg
• Includes : Standalone

Click »» here to see Molabo motors for sale in the Plugboats Market

»» Molabo website

Molabo was founded in 2016 with the goal of providing safe-to-touch low-voltage e-solutions to enable sustainable mobility worldwide. To achieve this they developed the ISCAD (Intelligent Stator Cage Drive) motor technology and have been granted 10 patents worldwide with automotive and marine OEM (Original Equipment Manufacturer) partners in Europe and China.

Molabo ISCAD V50

• kW : Peak: 80 | Continuous: 50 •  Voltage : 48V
• Motor Type : PM-SynRM (Permanent Magnet Synchronous Reluctance Motor) ISCAD (Intelligent Stator Cage Drive)
• Cooling : Water: 7 l/min, max. 45°C (dual circuit cooling possible)  •  IP67
• RPM : 4350 • Efficiency : 95.6 % (Motor: 97 %, Controller: 98 %)
• Dimensions : L: 265mm, Diameter: 254mm • Weight : NA
• Includes : Available as components or compete set-up including motor, reduction gear, rubber mounts & brackets, 5″ touch display, throttle top or side mount, molaCONNECT & molaLINK (IOT), communication cable set
• Available : Battery and charger packages: LFP 36kWh, 48kWh and 12kWh additions
• Price : Motor: €19,990 ($US 21,000)  •  With all components package (excluding battery): €28,400 ($US 29,900)

Click »» here to see NT Systems motors for sale in the Plugboats Marketplace

»» NT Systems website

NT Systems was established in 2018 by a team that includes experts in boating propulsion systems, electric engineering, electric systems development, and development of hybrid propulsion for the biggest 10-20 meter hybrid fleet in the world. They have a range of compact turnkey electric propulsion systems for commercial and leisure applications with high power-to-weight ratio continuous power from 40 kW up to 450 kW. Their system includes top or side mount throttle levers and all-in-one MFD with integrated propulsion interface, navigation, entertainment, and connectivity.

NT Systems electric propulsion inboards 7 models: C40, C80, C120, C160, C200, C320, C450 NOTE : Direct Drive or Gearbox Version s Systems feature a built-in thrust bearing, allowing for direct shaft mounting and use of the propulsion system in a direct drive configuration for simplified installation. Systems are also compatible with various marine gearboxes, allowing you to adjust the output RPM and torque.

• kW : (continuous) – 40, 80, 120, 160, 200, 320, 450 • Voltage : 40, 80, 120: 400Vdc • 160, 200, 320, 450: 700Vdc
• RPM (Nominal): 3200
• Torque [Nm] (continuous / peak) : 128 / 225 • 257 / 450 • 398 / 675 • 530 / 900 • 660 / 1130 • 1060 / 1800 • 1580 / 2680
• Dimensions : Length (mm) : C40, C80: 550 • C120, C160, C200: 665 • C320: 915 • C450: 1030 • Weight (kg) : C40: 79 • C80: 85 • C120: 96 • C160: 104 • C200: 124 • C320: 195 • C450: 240
• Includes : Electric motor with built-in thrust bearing • Motor controller/inverter • Electronic control unit (ECU) • Electrical and water plugs • Cooling system: heat exchangers, pumps for inner and outer circle, water strainer, flow through expansion tank • Frame and engine mounts
• Country of Manufacture : Slovenia
• Price : depends on configuraiton

»» Oceanvolt website

Click »» here to Oceanvolt motors for sale in the Plugboats Market

Oceanvolt is one of the best known names in electric boat motors, especially for sailboats, and is a leader in regenerative / hydrogenerative props systems. There are standard systems available, the motors can be purchased separately, and the company can also do custom installations. Oceanvolt has both all-electric and hybrid systems, we have only included the all-electric systems here, and only the standard preconfigured systems.

Oceanvolt Inboard Systems with AX motors: 3 Models: Shaftdrive 3, Shaftdrive 5, Shaftdrive 8

• kW : (continuous) – 3.7kW, 5.3kW, 8.7kW • Voltage : 48 • Current : • HP :
• Motor Type : Synchronous permanent magnet electric • Cooling : Air
• RPM : 2400
• Dimensions : NA • Weight : 22kg, 28kg, 28kg
• Includes : Controller/battery communication kit, Hydrogeneration feature
• Available : Batteries, charger, propeller
• Country of Manufacture : Finland
• Price : $US 6,500 – 8,000

Oceanvolt Inboard Systems with AX3 motors: 2 Standard Systems: Shaftdrive 10, Shaftrdive 20 NOTE: The AX3 motors are 10kW motors that can be ‘stacked’ to create higher powered system, up to 40kW. i.e. the illustration below shows 1 X 10kW AX3 in the diagram but 2 X 10kW AX3s coupled to form a 20kW motor in the photograph .

• kW : 10kw, 20kW • Voltage : NA • Current : • HP : 20 – 60
• Motor Type : PMAC • Cooling : Liquid
• Includes : Battery, controller/battery communication kit, Hydrogeneration feature
• Price : $US 36,000 – 59,000 (includes Lithium battery pack – 13.3kWh/26.6kWh)

»» Piktronic website

Piktronik is an Austrian-Slovenian company working on the research, development and production of components for electrical vehicles (EV) and boats. Their inboards are available as standalones and also as complete systems.

Piktronik Motors : 7 Models: PMSM10, PMSM40 PMSM50 PMSM60 PMSM100 PMSM110 PMSM180

• kW : (continuous) From 10 to 180 • Voltage : From 30V to 307V • Current : From 205A to 370A • HP : From 13.6 to 245
• Motor Type : 3 – Phase  Permanent Magnet Synchronous ( PMSM ) • Cooling : Water cooled • IP :
• RPM : From 1200 to 3600
• Torque : From 80Nm – 555Nm
• Dimensions : From L: 431mm W: 220mm H: 220mm to L: 565mm W: 396 H: 396mm • Weight : From 45kg to 171kg
• Includes : See Piktronik systems below
• Country of Manufacture : Austria/Slovenia

Piktronik Systems : All of the motor power sizes above are available as complete systems. System includes:

• Display, control and battery monitoring unit 
• DC-DC converter
• Battery chargers
• Wire harness, Distribution box, battery fuses and contactors, FI-Box, Ignition switch, User guide

»» Synapseo website

Synapseo was founded by a group of passionate sailors who have a common interest in making our oceans, seas and rivers great again. They have developed the KYWAT, an adaptive in-board solution to easily replace old diesel or gasoline engines. It is available in five models with power outputs from 4kW to 20 kW. The have output shaft diameter of 25mm to 30mm and mounting brackets hat adapt to all standard engine cradles. All motors have hydrogeneration / regeneration.

Synapseo Motors : 5 Models: AE-10, AE16, AE24, AE36, AE60

• kW : 4kw, 6kW, 10kW, 16kW, 20kW • Voltage : AE-10 – AE36: 48V, AR60: 72C • HP : 10, 16, 24, 26, 60
• Dimensions (mm): • AE-10 – AE24: W: 400 L:630 H: 440, AE 36 and AE60: W: 448 L:742 H: 512
• Includes : Control panel, digital throttle, power cables, coupling, four silencing blocks.
• Country of Manufacture : France

»» TEMA website

TEMA was founded in 1989 by Branimir Ruzojcic, Dr.Sc, who is still GM of the company. Its goal was to merge academic and scientific researches and engineering practical resources for offering sophisticated industrial automation products to the market. Today TEMA offers advanced motors/generators using Permanent Magnet technology ranging from 10KW to 1500KW and offers complete electric propulsion systems for all-electric, serial hybrids and parallel hybrid boats, from small leisure yachts to large commercial boats.

TEMA Motors : 5 Models: SPM132-1, SPM132-12, SPM132-2, SPM132-22, SPM132-3

• kW : 10kW – 60kW • Voltage : 48 – 450Vdc • Current : • HP :
• Motor Type : PMAC • Cooling : Air – either natural or forced air/fan
• RPM : Nominal – 3600
• Torque : (Nominal): 70 – 205Nm
• Dimensions : • From L:275mm, H: 260mm, W: 260mm to L: 552mm, H: 260mm, W: 260mm Weight : 70 – 148kg
• Includes : motor controller, marine throttle, information display, Plug and Play easy wiring
• Country of Manufacture : Croatia

»» Thoosa USA website

The Thoosa design has been in production in Denmark since 1998, originally by ASMO Marine, which became Clean eMarine in 2012. They manufacture the AC Triton motor and the DC Thoosa line, which includes four models with power ratings from 5kW to 12kW. All are geared motors. Motor and controller are sold together, with mounting brackets. Throttles and monitors are also available from the company.

Thoosa DC Motors : 4 Models: Thoosa 5000, Thoosa 7000HT, Thoosa 9000, Thoosa 12000

• kW : (continuous) – 5kW, 7kW, 9kW, 12kW •  Voltage : Thoosa 12000 is 72V, others are 48V •  Current : (Peak) 300A – 400A •  HP : 10 – 50
• Motor Type : Axial Flux ‘Pancake’ Permanent Magnet DC •  Cooling : Air cooled
• RPM : 1080 – 1270
• Torque : (Peak) 59.5Nm – 73.3Nm
• Dimensions : NA •  Weight : (System) 37kg – 47.5kg
• Includes : Motor, controller
• Available : Throttle, battery monitor
• Country of Manufacture : Denmark / US Assembly for US models

»» Torqeedo website

Torqeedo is the world’s leading manufacturer of electric outboards. The company was founded in 2004 by Dr Christoph Ballin and Dr Friedrich Böbel when they decided they could build a better electric motor than the one on the boat Dr. Ballin had just purchased. The inboards are sold as a complete system, including batteries, and each is designed for different usage: the 1400 (RPM) models for displacement sailing with heavy boats, the 1800 (RPM) models for for planing with fast boats and the 100kW 900 for large sailing yachts and heavy displacement vessels.

Torqeedo Deep Blue Inboard Line – 25i and 50i models 4 Models: Deep Blue DB25i 1400, Deep Blue DB50i 1400, Deep Blue DB25i 1800 , Deep Blue DB50i 1800

• kW : 25i models – 27.6kW/33 Peak, 50i models – 55kW66 Peak • Voltage : 360V • Current : • HP : 25i models = 40HP, 50i models = 80 HP
• Motor Type : Permanent Magnet Synchronous (PMSM) • Cooling : Water cooled • IP :
• RPM : Model number1400 and 1800 refer to RPMs
• Torque : <280Nm – 343Nm
• Dimensions : L: 680mm W: 512mm H: 376mm • Shaft sizes : 30, 35, 40mm | 11/8,11/4” • Weight : 80kg
• Includes : Complete integrated system, including on-board touchscreen computer, batteries, shafts and propeller.

Torqeedo Deep 100kW 900

• kW : 100kW continuous • Voltage : 360V • Current : • HP : 135
• Motor Type : Permanent Magnet Synchronous (PMSM) • Cooling : Water cooled
• RPM : 900 (max)
• Torque : 1060Nm
• Dimensions : NA • Shaft sizes : 30, 35, 40mm | 11/8,11/4” • Weight : 450kg (w/o battery, including electronics)

»» WaterWorld website

WaterWorld is a joint venture undertaken by two companies, De Stille Boot, a distributor specializing in electric boating and Water World Electronics, a Dutch specialist in low voltage electronics. WWE develops and produces its own printed circuit boards and complete controllers for various markets such as the building and car industry. They have joined together to “offer boat owners and -users the ultimate joy of a quiet, calm and carefree boat ride.” The company offers four direct drive electric inboard systems, with the motor and controller in one housing with adjustable engine supports as well as monitors and other accessories.

WaterWorld Inboards : 3 Models: 4.0 i , 7.5 i , 10.0 i , 15.0 i

• kW : (continuous) – 4kW, 7.5kW, 10kW, 15kW • Voltage : 48V • Current : 92V (max), 172A, 230A • HP :
• Motor Type : Asynchronous • Cooling : Air cooled • IP :
• RPM : 1450 (max), 1350, 1450
• Torque : 27Nm, 53Nm, 66Nm
• Dimensions : (Motor and controller in frame) 4.0i: L- 558mm x W-225mm x H-221mm | 7.5i and 10.0i – L-681mm x W-290mm x H-271mm • Weight : (Motor and controller in frame) 4.0i: 39kg, 7.5i and 10.0i: 76kg
• Includes : Motor, controller, thrust bearing, relay, digital colour touch screen display, throttle
• Price : $US 3,675 – 5,500 (15.0 i tba)

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Electric motors are in constant ‘stand by’ mode; you can engage the control lever at any time for instant forward or reverse propulsion.

Electric motors achieve instant torque with Electromotive Force while internal combustion engines need to build RPMs gradually by increasing piston firing frequency.

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At sailing speeds over 6 knots Oceanvolt systems are able to generate significant power for recharging the battery bank by activating at the touch of a button.

Power regeneration increases exponentially with each additional knot of speed.

Lithium Ion batteries are superior to other battery storage technology; highest storage capacity, high effective current delivery, high charge capacity resiliency and wide temperature range performance. In today's digital age, where everything is just a click away, 1xbet mobile takes a significant chunk of the online casino services sector. Starting as an online casino service in 2007, 1xBet expanded its services in 2014 to include sports betting. Fast forward to 2018, and they marked their entry into the Indian market. Their app and website, designed in a calming blue and white hue, are not just a treat for the eyes but are also super intuitive. With a support interface that covers 50 languages, including Hindi, the platform ensures that language is no barrier to placing your bet.

Oceanvolt highly skilled technical team ensures proper installation and system-optimization.  Only the highest quality Li-Ion batteries are used - to ensure performance and safety.

For those interested in a hybrid solution, generators are a highly efficient way to extend range while at sea.

DC generators have the advantage of rapid recharging capability.

AC generators are, generally, smaller and even portable which means that the generator can be aboard only in situations where longer motoring might be required.

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Home » Blog » Gear » Buyers guide to electric boat motors (2023)

Buyers guide to electric boat motors (2023)

By Author Fiona McGlynn

Posted on Last updated: August 3, 2023

Considering making the switch to an electric boat motor? With electric vehicles now commonplace on the roads, it’s no wonder so many boaters are curious about electric boats.

While electric boat motors have been around for a while, in the last several years the technology has taken huge leaps, resulting in more powerful motors, longer-lasting batteries, and ultimately more options for recreational boat owners.

Today, many types of boats can be outfitted with an electric propulsion system including pontoon boats, sailboats, jon boats, powerboats, fishing boats, yachts, and trawlers . If your boat’s combustion engine is in the range of 1 to 135 hp (.75 to 100 kW), you should be able to find an electric substitute.

While electric boating hasn’t gone mainstream—it’s estimated that close to 2% of recreational boats are electric—it’s still a great time to be thinking about making the switch, particularly if you own a tender, sailboat, or boat on a green lake where combustion engines are prohibited.

Table of contents

• 1.1 Benefits
• 1.2 Drawbacks
• 2.1.1 Key features of electric outboard boat motors
• 2.1.2 Electric outboard manufacturers
• 2.2.1 DIY electric inboard boat motor conversion
• 2.2.2 Key features of electric inboard boat motors
• 2.2.3 Electric inboard manufacturers
• 2.3.1 Serial vs. parallel hybrids
• 2.3.2 Key features of marine hybrids
• 2.3.3 Marine hybrid manufacturers
• 2.4.1 Electric pod and sail drive manufacturers
• 3 Batteries
• 4 Ready to catch the electric boating wave?

Benefits and drawbacks of electric boat motors

Electric marine motors offer several advantages over internal combustion engines:

• They’re completely silent .
• No noxious fumes or smelly exhaust gases to deal with.
• Instant torque.  Electric propulsion provides instant torque, giving you better maneuverability and more consistent speeds in choppy conditions.
• Lightweight.  An electric setup (including motor, batteries, and generator) typically weighs less than its diesel counterpart.
• No fuel cost.  Charging an electric boat may cost a couple of dollars per charge.
• Easy to maintain.  Imagine the maintenance on an outboard with no gas, spark plugs, or oil! Electric motors are simple, more reliable, and virtually maintenance-free.
• Renewable power.  Once you’ve gone electric you can get power from renewable sources like wind generators and solar panels.
• Better for the planet.  Electric marine motors don’t produce water pollution or produce harmful emissions like carbon dioxide (CO2), nitrogen oxides (NOx), and hydrocarbon (HC).

• Range.  The greatest drawback of electric boats is their limited range, which is often measured in the 10s of miles. Range is limited because batteries don’t have the same energy density as fuel — they can’t provide the same energy, pound-for-pound as a tank of gas. A good battery monitoring system, one that displays the remaining range in real-time, can help boaters manage energy consumption and ease range anxiety. For those who want to go farther afield, hybrid propulsion may be a better option.
• Upfront cost.  This new technology isn’t cheap. For example, a small electric outboard boat motor may sell for two-and-a-half times the cost of a gas outboard. However, prices are expected to come down as the industry reaches scale.

Types of electric boat motors

Electric outboard boat motors.

Some of the first electric outboards to hit the recreational boating market were smaller electric motors, typically used as trolling motors on fishing boats.

Today,  it’s possible to buy far more powerful electric outboard motors in the 1 to 80 hp (.75 to 60 kW) range , with ever more powerful versions hitting the market each year. In 2022, Norwegian start-up, Evoy launched the world’s most powerful outboard to date, the 225kW Storm, a 300-hp beast of an electric outboard! 

The range on electric outboard boat motors varies dramatically depending on your boat, total weight, propellor, and battery capacity .

The range also depends on how fast you want to travel. If you go slowly you’ll have a much greater range.

For instance, at a slow speed (5 knots) Torqeedo’s Deep Blue 50R , a 50 kW motor (80 hp equivalent) with a 40 kWh battery, has a listed range of 33-100 nm. But at full throttle (20-25 knots), the listed range drops to 16-20 nm.

To get a better sense of what range to expect on your boat (at both low and high speeds), you can look at the manufacturer’s website. See our list of electric outboard brands below.

One of the great things about electric outboards is that they can use renewable power sources. So, for instance, you could plug your boat into a portable solar panel while picnicking and get an extra boost for the trip home.

Some electric outboard boat motors can even generate power! Motors with hydro regeneration capabilities can charge the batteries while the boat is being towed or under sail.

While hydro regeneration is a fairly new feature for electric outboards, some manufacturers, like EPropulsion, are offering it across their outboard product line.

Key features of electric outboard boat motors

Each electric outboard motor brand has slightly different standard offerings and add-on features. Here are some of the key features and options to look for.

• Waterproof.  Some electric outboards are fully sealed and designed to withstand immersion
• Remote controls. Choose between tiller and remote throttle controls
• On-board computers . Some electric outboards come with chartplotter connectivity, navigation functions, sonar, GPS anchoring, and autopilot features
• Built-in or stand-alone batteries.  Some of the smaller motors come with built-in batteries, while the larger ones have separate battery packs
• Battery monitoring and tracking systems  that calculate and display the remaining range in real-time
• Shaft length.  Electric outboards come in both short and long shaft lengths to accommodate a variety of applications.
• Hydro regeneration capabilities 

Electric outboard manufacturers

These electric outboard boat motor manufacturers (listed in alphabetical order) range from small startups to large companies and serve the North American market.

If you’re looking to learn more about what each of these companies offers (and how they compare) I’d highly recommend checking out the  Plugboats’ electric outboard guides and directories . Jeff Butler, the editor at Plugboats has done a great job of compiling motor specifications from across the market.

Headquartered in San Diego, California,  Bixby  makes a small electric motor system for kayaks, inflatable boats, canoes, and paddleboards.

Elco  has been building electric motors for 125 years and counts the likes of Henry Ford and Thomas Edison among their customers. Their award-winning electric marine motors range from 5 to 50 hp. The company is based in Lake George, New York, and its electric motors can be found on boats around the world.

Flux Marine

Flux Marine was founded by mechanical engineering Princeton grads and offers three outboard models—a 40 hp, 70 hp, and 100 hp. In 2021, they won an award for the best new green product at the Newport International Boat Show.

Joe Grez, a consumer product developer from Washington, invented the  EP Carry , a compact, ultralight electric outboard system because he was concerned about exposing his young daughter to the carbon monoxide (CO) emissions produced by gas outboards.

The EP Carry retails for $1,600 and is a great size for small vessels like dinghies, canoes, inflatable boats, and kayaks.

ePropulsion

ePropulsion , based in Guangdong, China, manufactures 3 to 9.9-hp electric motors for sailboats, fishing boats, as well as dinghies and tenders. They all come with hydro regeneration capabilities.

Mercury Marine launched the Avator 7.5 electric outboard (3.5 hp equivalent) in early 2023. The leading outboard manufacturer is currently developing more powerful 20e and 35e models which it plans to release later this year.

In 2023, Newport , a well-known US-based inflatable boat manufacturer, launched three small outboards ranging from 1.8 to 3 hp.

If you’re into fishing, you’re probably familiar with the Minn Kota  name, derived from MINNesota North DaKOTA, prime fishing country where the company has its roots. They introduced their first electric trolling motor back in 1934 and they’ve been making them ever since.

Pure Watercraft

Pure Watercraft  was founded by CEO Andy Rebele in Seattle in 2011. Their 25 kW (50 hp) motor starts at $16,500.

Ray Electric Outboards

Ray Electric Outboards is a 3rd generation family-owned business based in Cape Coral, Fl. They manufacture one outboard model that can be operated at different power ratings ranging from 10 to 22 hp.

Stealth Electric Outboards

The 50 and 75-hp  Stealth electric outboards  were developed by Scott Masterston of Houston, Texas.

German manufacturer,  Torqeedo , has been leading the propulsion industry for years and sells some of the best e outboard motors in the 1 to 80-hp range

Vision Marine Technologies  (formerly The Canadian Electric Boat Company). 

Based in Quebec, Canada,  Vision Marine Technologies  has been in the boating industry for 25 years and produced some very innovative electric boats. In 2021, they launched E-Motion 180E, one of the most powerful electric outboards on the market.

Electric inboard boat motors

Today’s electric inboard motors can provide anywhere from  3- to a whopping 330 hp (2 to 246 kW)  and are used in a range of applications from heavy displacement vessels to fast, planing powerboats.

Similar to outboards, the range on electric inboard engines will vary based on your boat, load, battery capacity, and boat speed (among other things).

However, with an inboard electric boat motor, you have the option of a hybrid motor which can significantly extend your range. We’ll discuss the pros and cons of hybrid boat motors later in this post.

Sailors may also want to consider choosing an inboard electric motor with hydro regeneration capabilities. These electric power motors can charge the battery while the boat is under sail.

DIY electric inboard boat motor conversion

One way to save money on an electric inboard is to do the installation yourself. There are a few DIY electric inboard boat motor conversion kits available on the market.

I’ve spoken with a few sailors who’ve had great success replacing their inboard diesel engines with these electric boat motor conversion kits from  Thunderstruck-EV , an electric drive manufacturer in Santa Rosa, California.

Key features of electric inboard boat motors

Each brand has a slightly different set of electric inboard motor options. Here are some of the key features and options to look for.

• DIY conversion kits
• On-board computers  and touchscreen display
• Waterproof  system components

Electric inboard manufacturers

US manufacturer, Elco Motor Yachts , has been building electric motors for over 125 years, having gotten their start in 1893, supplying electric boats for the Chicago World’s Fair. They have seven inboards ranging from 6 to 200 hp.

Electric Yacht

Electric Yacht  is a US supplier focused on providing plug-and-play electric motors for DIY installations on sailboats. Their electric propulsion systems range from 10 to 30. They’ve had over 450 installs in 10 years of production.

Oceanvolt  is a leader in regenerative systems and their electric inboard motors are popular among sailors. They offer shaft drive systems ranging from 6 to 60 hp.

Torqeedo, a German manufacturer, is the world’s leader in electric boat motors. They have two lines of inboards, one for displacement boats and another for fast planing boats. Their Deep Blue inboard systems range from 25 kW to 100 kW (40 to 135 hp)

Hybrid systems

Hybrid systems combine an electric motor and combustion engine, so you can cruise in silence (but know you’ve got enough gas to get home). These systems offer  many of the benefits of pure electric motors, without the limited range. 

If you want  additional power for onboard luxuries  like air-conditioning, hybrids can also provide a significant increase in house-side fuel efficiency.

The downside to any hybrid solution is that the systems are far more complex . Not only do they require more equipment, but, for an optimized system, you’ll need highly sophisticated software to manage multiple power sources and switch back and forth between diesel and electric.

Unsurprisingly, the increased complexity adds cost, making hybrids less economical than either a conventional or pure electric install.

Serial vs. parallel hybrids

As with cars, there are  two types of hybrid systems: serial and parallel.  A serial hybrid uses a generator to power a large electric motor connected to the drive shaft. Whereas, a parallel hybrid has both a conventional combustion engine and a small electric motor connected to the drive shaft.

There are plenty of factors to consider when choosing between a parallel and serial system. Marine mechanics and electrical expert, Nigel Calder, does a great job of explaining  serial and parallel hybrids  in detail.

In general, serial systems may be a better fit for boats that can get most of their propulsion energy from renewable sources (e.g., a sailing catamaran). Whereas, a parallel system makes more sense on boats that regularly require sustained propulsion (e.g.,  Greenline’s power yachts ).

Key features of marine hybrids

• Parallel and serial hybrid options
• Integrated energy management  systems

Marine hybrid manufacturers

Elco motor yachts.

Elco  manufactures serial, parallel, as well as a combined serial-parallel system. Their systems can be used on sailboats, trawlers, yachts, and boats up to 85′ feet.

Hybrid Marine Ltd.

Hybrid Marine  sells parallel hybrid systems in the 10 to 230 hp range. Beta, John Deere, and Yanmar’s hybrids all incorporate Hybrid Marine technology.

Finnish manufacturer,  Oceanvolt , offers serial hybrid systems for both sailboats and powerboats.

Torqeedo  makes hybrid systems for yachts up to 120 feet as well as powerful motorboats.

Electric pod drive and sail drive

Several manufacturers are now making electric pod and sail drives. These electric drive systems are more efficient and can save space onboard.

Electric pod and sail drive manufacturers

Electric Yacht  produces a range of sail drives that can replace diesel engines up to 75 hp.

propulsion  sells a 3 hp, 6 hp, and 9.9 hp fixed pod drive.

Oceanvolt’s  sail drives range from 6 kW to 15 kW (8 to 20 hp)

Torqeedo  sells a 40 hp and 80 hp equivalent electric sail drive as well as electric pod drives in the 6 to 25 hp range.

While it’s possible to power an electric motor with a conventional lead-acid battery, there are many  good reasons to upgrade to lithium-ion batteries.

Their increased usable  capacity is roughly double  what you can get out similarly sized lead-acid battery. More battery capacity means more range—and hours of fun—on your electric boat.

They also  charge more quickly  and have a  longer life span  than lead-acid batteries. Unlike flooded lead-acid batteries, which need to be watered, lithium-ion batteries are practically maintenance-free.

The downside is that lithium-ion batteries are far  more temperature-sensitive  and can’t be charged much above 113 F (45 C) or below 32 F (0 C).

They  can also present major safety issues . Lithium-ion batteries can go into what’s known as thermal runaway—a self-heating process that can cause the battery to catch fire.

Simply put,  lithium-ion batteries are NOT a drop-in substitute for lead-acid batteries.  They need to be specially designed for the marine environment and paired with a robust battery management system.

Electric motor manufacturers often provide complete solutions (including motor, batteries, and battery management system). It’s a good idea to work with a manufacturer with extensive marine experience and an ABYC-certified technician on any installation.

The other catch is that lithium-ion batteries  cost two to four times   as much as lead-acid  batteries. However, the increased capacity and longer life span may make lithium batteries a better value option over the long run.

Ready to catch the electric boating wave?

With ever more powerful and feature-packed electric options launching each year, it’s an exciting time to be in the market for a new motor or engine. If you have any doubts about whether an electric boat motor is right for you, head to your local boat show and see, first hand, what all the buzz is about.

Fiona McGlynn is an award-winning boating writer who created Waterborne as a place to learn about living aboard and traveling the world by sailboat. She has written for boating magazines including BoatUS, SAIL, Cruising World, and Good Old Boat. She’s also a contributing editor at Good Old Boat and BoatUS Magazine. In 2017, Fiona and her husband completed a 3-year, 13,000-mile voyage from Vancouver to Mexico to Australia on their 35-foot sailboat.

Douglas McQuilken

Sunday 30th of January 2022

Great article!

For those who wish to collaborate with prospective & current electric boaters, highly recommend this forum - https://groups.io/g/electricboats

Thanks for the suggestion, Douglas!

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EP-200 ELECTRIC INBOARD

$ 68,995.00

Comparable HP: 200HP Voltage: 144 Volts Suggested Battery Package Options: Deep Cycle AGM – Victron – 12V / 220Ah (24 pack) Lithium Iron Phosphate – 96V / 100Ah (Custom setup)

Congratulations on getting one step closer to purchasing your award-winning Elco Electric Inboard. Select the options and accessories below. 

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LIVORSI SIDE MOUNT REMOTE THROTTLE (Throttle Package)

$ 450.00

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$ 650.00

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Pre-assembled battery connection cables simplify motor installation. Our 7-foot electric battery cables and 18-inch battery jumper cables are adequately sized based on the motor amp draw. Swaged terminal ends are sealed with epoxy-impregnated heat-shrink tubing where they connect to marine-grade fuse blocks, Anderson motor connectors, and batteries.

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Discover the strength of Elco’s EP-200 electric inboard , a 200 – hp electric inboard boat motor that makes converting a diesel – powered vessel easier with its plug – and – play design. The EP-200 electric inboard powers boats up to 120 feet in length, including water taxis. This 200 – hp inboard boat motor offers quiet operation and significantly reduces environmental impact, aligning with Elco’s long-standing commitment to sustainability that started with the 1893 World’s Columbian Exhibition in Chicago. Experience over 50,000 hours of operation with the EP-200 electric inboard , where performance meets reliability and environmental responsibility .  

Elco EP System – Electric Boat Propulsion at Its Finest

The Elco Electric Propulsion System is well engineered using advanced technologies for reliable and outstanding performance. All of Elco’s products are built in the USA.

Elco Electric Motor: Cool, Quiet & Powerful

The entire propulsion system, excluding instrument panel and batteries, is contained in a water resistant cast aluminum finned housing that contains all of the electronics, AC motor, and safety devices. The system is mounted directly in place of a typical marine diesel or gas engine. Whether on the sound, around the bay, along the lake, or on the river, it is highly valuable to protect our waters. The Elco Electric Propulsion System is a highly efficient and extremely durable alternative to fossil fuel options.

* Performance may vary based on operating conditions. The figures provided above relate to travel at between 60 – 80% of hull speed.

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To convert from nautical miles (nm) to statute miles multiply nm by 1.15.

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Yanmar Unveils Its First Electric Propulsion Product For Emission-Free Sailing

Yanmar Marine International, a leading marine engine manufacturer, has launched its first-ever electric propulsion product, the E-Saildrive, for emission-free sailing.

The product was introduced globally at the Cannes Yachting Festival and the Newport International Boat Show to make electric boating more accessible to sailing enthusiasts.

The E-Saildrive is designed with a plug-and-play platform for easy installation and connection, avoiding the need for complex hull modifications.

The product features a cooling system, an integrated gear, a motor, and a motor controller, allowing a smooth transition to 100% electric sailing.

The global launch introduces the three models of the E-Saildrive: the SDe7, SDe 10, and SDe 15, each capable of producing up to 15kW of power for sailboats under 40 feet, depending on the vessel’s application and displacement.

The E-Saildrive is a direct replacement for Yanmar’s YM engine, one of the most widely used engines in sailboats. This allows boatbuilders to offer both electric and combustion engines.

Customers who want to refit their sailboats with the E-Saildrive can do so without making any hull modifications.

Regarding user experience, YANMAR has equipped the system with a modern control design, including a 4.3″ optically bonded TFT display with an IPX7 waterproof rating and anti-fog coating. Control heads are available on both side and top mounts, ensuring flexible installation.

YANMAR is known for the reliability and efficiency of its HVO-approved combustion engines. The E-Saildrive series upholds this engineering standard with lower maintenance requirements than traditional combustion engines.

Boaters will also benefit from YANMAR’s extensive global support network, which comprises over 2,000 distributors and dealers in 130 countries.

Floris Lettinga, Director of Sales and Marketing at YANMAR Marine International, highlighted the importance of the E-Saildrive’s launch, saying it represents an important step in decreasing the environmental impact of sailing.

Lettinga said that YANMAR’s new electric propulsion system is packed with innovative features to help boaters easily switch to emission-free sailing and that the company’s dealer and distributor network would provide worldwide technical support.

Reference: Yanmar

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The molabo electric inboard as a shaft unit with the world’s most powerful 48 v electric motor as a system solution.

The MOLABO inboard system offers a silent, low-vibration propulsion solution that is easy to install thanks to the touch-safe 48 V low-voltage technology.

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Range aries i50 inboard with 36 kwh lfp battery bank (6 x 6 kwh modules)*..

*Measured on motorboat, length: 7.10 m, weight approx. 1,150 kg. Depending on boat model, load, propeller and local conditions; speed and range data without guarantee.

Range ARIES i50 inboard with 48 kWh LFP battery bank (8 x 6 kWh modules)*

* Measured on motorboat, length: 7.10 m, weight approx. 1,270 kg. Depending on boat model, load, propeller and local conditions; speed and range data without guarantee.

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How I bypassed the speed restriction on my NCM 500W/48V Moscow Plus 29er.

• Thread starter FullyCharged
• Start date Mar 23, 2020
• Tags das-kit c7 ncm speed restrictions tuning display

FullyCharged

Active member.

• Mar 23, 2020

Kommunikation zwischen C7 Display und Motorkontroller NCM Venice+ Das-Kit

I have already published my research and results in the 'other' pedelec and E bike forum, but I hope to also reach other interested people here. First of all, thanks to Arthus Dent who started over a year ago and based on his work. My NCM Venice + 48V e-bike with Das-Kit C7 display and probably Lishui controller. On the back of the display is C600-1705- B640 V2.7-EN . After entering the code (8018), the display only allows you to change three support levels (Eco Normal Power) and to select the voltage 36 or 48V. Lockdown speed and wheel diameter are not accessible. There are very poorly available € 119 tuning displays in which the last two things can also be changed. So I cut the cable open and found out the function of the cable and the pin assignment using an oscilloscope and logic analyzer (yellow is thumb gas with the usual about 1 to 4 volts) Messages with 9600 baud at 3.3Volt TTL levels are exchanged on the data lines so that I could examine the protocol via USB TTL adapter. At approx. 10 Hz, 12 bytes come from the display to the controller, which responds with 10 bytes. Without a message from the display, nothing is sent from the controller. If you put the switch-on signal on the supply voltage, the controller uses the last setting and also works without a display. For better testing, I soldered a pin header into the cable so that I can easily interrupt individual signals: But now the exciting results: Display -> Motor controller b0 b1 b2 b3 b4 b5 b6 b7 b8 b9 b10 b11 3A 2C 0A 46 1A 48 08 06 EC 00 0D 0A Byte0: always 3A Byte1: always 2C Byte2: changes depending on the support level 09 with Eco 0A with Normal 0B on Power Byte3: changes with drive level 0x56 pushing aid 0x40 level 0 0x41 level 1 ... to 0x46 level 6 Byte4: final speed 0x1A = 26km / h Byte5:? Byte6:? Byte7:? Byte8: checksum (b1 + b2 + b3 + b4 + b5 + b6 + b7) mod 256 Byte9:? Byte10 and 11: 0D 0A (CR LF) * The controller responds accordingly: Controller -> Display b0 b1 b2 b3 b4 b5 b6 b7 b8 b9 3A 2C 00 60 EA 00 76 01 0D 0A b0: always 3A b1: always 2C b2: motor current 0x00 to 0x2A not yet checked but makes sense , when the rear wheel is up and pedaling brings a short 01 b3: cycle time v = 1325 / b3 (at 27.5 ") at standstill always 0x60 b4: b3 and b4 are low byte and high byte of the cycle time. b5: engine running: 0x00 im Standstill, goes to 0x16 as soon as the motor is switched on b6: checksum (b1 + b2 + b3 + b4 + b5) mod 256 b7: in stand 0x00 when the rear wheel turns 6km / h + -0.8km / h it goes to 0x01. Even at about 2km / h, in a smaller speed window. b8 and 9: 0D 0A (CR LF) Next I grabbed a microcontroller (Teensy) and changed the messages coming from the display to the controller so that when I selected level two, I sent it to controller 6 at 36km / h maximum speed . With 3D printed housing: Depending on the battery voltage, the controller regulates at 29 to 32 km / h. Since the bike is also sold in the USA by Magnumbikes as Metro Plus with 500Watt and 45km / h, I hope there is more. But it may be that another motor is installed there that can turn faster. If you are interested I can also write more detailed instructions on how to connect and program a 5 Euro microcontroller there. In case someone just wants to replicate it. You could also build a simple adapter and would have a pluggable solution. Sebastian Click to expand...

the bike is also sold in the USA by Magnumbikes as Metro Plus with 500Watt and 45km / h, I hope there is more. But it may be that another motor is installed there that can turn faster. Click to expand...

Attachments

Deleted member 4210

Interesting. I swapped the Magnum display and controller both onto NCM Aspen+, and it didn't make any difference at all. Did this 4 months ago.  

Deleted Member 4210 said: Interesting. I swapped the Magnum display and controller both onto NCM Aspen+, and it didn't make any difference at all. Did this 4 months ago. Click to expand...

I'm going to test the correct speed with a gps app on my phone tomorrow sometime. Also planning to see if changing tire size will affect anything.  

• Mar 25, 2020

Deleted Member 4210 said: I stock multiple of their displays as I am a Magnum dealer. Also an NCM dealer. Click to expand...

Other things I noticed. The battery meter doesn't work on the G660 when connected to my NCM, only voltage. Changing the tire size does nothing for increasing speed.  

• Mar 26, 2020

Burak said: Hello, I am planning on buying Aspen Plus or Moscow Plus. Anyway, could you help me step by step on how to unlock the true potential of this bike please, I am new to ebiking and i have no idea what to do whats so ever lol. Click to expand...

• Apr 11, 2020

FullyCharged said: The first thing that came to my mind after my first ride on my 48V/500W NCM Moscow Plus was "How can I make this bike faster?" Throttle was maxed at 20mph(32km/hr) and the Petal Assist top speed was limited to 23mph.(37km/h) I knew the motor was capable of much more to stay within the specs of Class 3. So I made it my mission to try to find a hack or aftermarket hardware that would run my bike at the sweet spot of 28mph/45 kmh (Top end of Class 3) I took to the internet to figure out my problem. After hours of digging through the interwebs I came across this thread in a german pedelec forum. Kommunikation zwischen C7 Display und Motorkontroller NCM Venice+ Das-Kit Moin, ich habe bereits im dem 'anderen' pedelec und E bike Forum meine Untersuchung und Ergebnisse veröffentlicht, hoffe aber hier zusätzlich noch weitere interessierte Leute zu erreichen. Zunächst einmal ein Dank an Arthus Dent der schon vor über einem Jahr damit angefangen hat und auf dessen... www.pedelecforum.de Code: https://www.pedelecforum.de/forum/index.php?threads/kommunikation-zwischen-c7-display-und-motorkontroller-ncm-venice-das-kit.57050/page-1 A member by the name of vspadrva made some interesting advances. He managed to use an oscilloscope and logic analyzer to reverse engineer the Das-Kit C7 Display and create code using a microcontroller (ESP2866) to intercept the data being sent through the bikes data cables. Here's a translated quote of his OP on that thread. The thread goes on and other smart programmers find a way to change the data values NCM set it place with their custom firmware. Eventually they created an open sourced project on github (which has some cool features) After reading all of this and checking out the code on github. I had a good understanding what needs to be done to go that route and hack the display. It wasn't something that I was interested at all to attempt to achieve. Also those german riders had 250W motor kits installed and were only trying to go as fast as my bike already could stock. (Due to speed restrictions in Europe) So now what? Something from vspadrva's post stuck with me. Click to expand...

wattrider said: I built vspadrva's controller override module, it works well. Also modded it to send the motor power readings to my phone. Glenn. Click to expand...

Well-Known Member

• Apr 18, 2020

This is great info. I wonder if they make a higher amperage controller that is compatible. Paying 2x as much for a Magnum display to get a few mph faster doesn't really seem worth it to me. I would want to make it a legit Class 3 to make it worth while if that was possible  

• Apr 23, 2020

FullyCharged said: Can you please make a thread. Would love to see your setup and have a place to ask questions. Welcome to the EBR forums. Click to expand...

• May 13, 2020

FullyCharged said: I can tell you there is a difference in the ride when you have the other on. Maybe not 28mph fast, but faster than a stock NCM display. The biggest difference is when you have a full battery. With the G660 Display installed its like the bike is on steroids. Acceleration is faster and doesn't lag as much. I was testing on the strip of road out front of my house today. Full battery starts for both tests. Click to expand...

For some, little gains = big rewards. I almost pulled the trigger on NVM Aspen+ but for a couple hundred more, I ended up getting a Juiced Rip Current because it is already class 3 and comes with 52v battery.  

Deleted Member 4210 said: You went to a lot of work and expense for no reason. The NCM Moscow Plus's that come in to my shop are already able to do 25 to 26 mph. No need to change display or firmware. Click to expand...

• May 15, 2020

So - just wondering - what does running the bike at 25+ mph do to battery life? I haven't consistently kept mine a 20, but I imagine it drains much quicker...  

• May 29, 2020

FullyCharged said: The first thing that came to my mind after my first ride on my 48V/500W NCM Moscow Plus was "How can I make this bike faster?" Throttle was maxed at 20mph(32km/hr) and the Petal Assist top speed was limited to 23mph.(37km/h) I knew the motor was capable of much more to stay within the specs of Class 3. So I made it my mission to try to find a hack or aftermarket hardware that would run my bike at the sweet spot of 28mph/45 kmh (Top end of Class 3) I took to the internet to figure out my problem. After hours of digging through the interwebs I came across this thread in a german pedelec forum. Kommunikation zwischen C7 Display und Motorkontroller NCM Venice+ Das-Kit Moin, ich habe bereits im dem 'anderen' pedelec und E bike Forum meine Untersuchung und Ergebnisse veröffentlicht, hoffe aber hier zusätzlich noch weitere interessierte Leute zu erreichen. Zunächst einmal ein Dank an Arthus Dent der schon vor über einem Jahr damit angefangen hat und auf dessen... www.pedelecforum.de Code: https://www.pedelecforum.de/forum/index.php?threads/kommunikation-zwischen-c7-display-und-motorkontroller-ncm-venice-das-kit.57050/page-1 A member by the name of vspadrva made some interesting advances. He managed to use an oscilloscope and logic analyzer to reverse engineer the Das-Kit C7 Display and create code using a microcontroller (ESP2866) to intercept the data being sent through the bikes data cables. Here's a translated quote of his OP on that thread. The thread goes on and other smart programmers find a way to change the data values NCM set it place with their custom firmware. Eventually they created an open sourced project on github (which has some cool features) After reading all of this and checking out the code on github. I had a good understanding what needs to be done to go that route and hack the display. It wasn't something that I was interested at all to attempt to achieve. Also those german riders had 250W motor kits installed and were only trying to go as fast as my bike already could stock. (Due to speed restrictions in Europe) So now what? Something from vspadrva's post stuck with me. This got me looking at Magnumbikes website. Low and behold they run the same Das-Kit C7/i5 controller system (data protocol) as my NCM bike but can reach 28MPH! This brought me to youtube looking up display tuning videos for Das-Kit C7 displays. MagnumBikes has a video posted there. I watched it and saw the tuning screens (Pedal Assist/Throttle) that my NCM doesn't have in its settings menu . After watching, I starting thinking that maybe the speed restriction data is stored in the Das-Kit i5 Controller firmware. I would be SOL unless I changed the Controller and the Display. But then I saw this image attached on that same german pedelec thread. View attachment 48098 Once I saw those chips, I knew there was firmware in the displays restricting the speed tuning options. I ordered a Magnumbikes C7 - 5 wire display. View attachment 48108 View attachment 48099 Got it today, removed my stock NCM display and installed Magnums. Guess what? I can now go 25mph on assist and 23mph on throttle. Here's a YT video of the new Display and the tuning options it gives my NCM Moscow Plus. YOUTUBE LINK ​ Hope this helps some of you out there wanting to go faster or tune the bike to go slower. Click to expand...

Steve Webb said: Really appreciate the help. Having fitted my C7 new display with throttle it is definately a bit quicker but the power only assists up to 20 mph. I followed your video tutorial and one setting lets me set at 28 mph but the next screen will only allow setting up to 20 mph, it is the screen showing the capital T on its side l- . Any advice as to why not getting the 28mph option here would be much appreciated. Click to expand...

My Mrs has the identical NSM Moscow but with the original L7 display, and certainly not much more than 5mph difference in speeds. Will try with a GPS app though when get a chance, but thanks for advice.  

• May 30, 2020

FullyCharged said: Interesting, what firmware does your stock NCM Moscow +’s come with? Click to expand...

• Jun 25, 2020

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10KW Brushless Sailboat Kit

Minimum quantity for "10KW Brushless Sailboat Kit" is 1 .

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The 10KW Brushless Kit features a Motenergy brushless motor and a 48V 450 Amp Curtis AC-F4A Controller that can produce up to 10KW continuous, often used to replace 30hp combustion engines!  This system is best for boats up to 12,000 pounds displacement.

All our systems have reverse on-the-fly and contactor disable features. "Brushless" means that the motor does not have brushes that will wear out over time, nor will it be a dangerous source of ignition for on-board gas appliances. Larger boats may require a higher power AC or brushless motor. In the U.S. and Canada, brushed motors are only legal for marine use if onboard appliances and accessories use kerosene or diesel (not propane or gasoline) due to the potential for internal motor arcing.

The controller has a regen feature than can allow current to be put back into the batteries from the spinning prop while under sail. This depends on your sailing speed, prop design, and may not be possible in all applications, but is an adored feature for those who are able to use it.

 We recommend a  Gear Reduction  due to the high RPM of the brushless motor.  The gear reduction will improve efficiency, provide proper torque, cooling, and help prevent cavitation. It also provides a mount for the electric motor.

The standard reduction for the 10KW kit is 2.67:1, but this ratio will depend on the required prop RPM needed to reach hull speed. Ideal reduction will enable the motor to spin your prop at the hull speed RPM of your prop when the motor is spinning at its max RPM. The 10KW kit comes programmed at 3,600 RPM max by default.

What batteries should you use? Most customers are happy with sealed, deep cycle lead acid, sourced locally to save on shipping. Use 4 in series to get 48v, with a 100 Amp Hour capacity minimum. Larger capacity will give a longer run time.

Those of you that are still in the "research phase" of your conversion should visit one of the  Electric Boats Discussion Groups  and talk to others who are doing or have already done electric conversions.

* Please describe your battery pack so that we can program your motor controller to match - then you won't need to ship it back to us. Minimum battery information includes cell chemistry, amp hour rating, overall pack voltage, series cell count and arrangement.

* If you choose not to use a gear reduction, which we do not advise, a thrust bearing in line with the prop shaft is required, since most motors are not rated for axial/thrust loads on the shaft. 

* Before you pull your old engine, support the prop shaft for reference so you can properly align the new system.

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• Motenergy ME1115 Dual-Stator Brushless Motor.
• Controller: 48V Curtis AC-F4A
• ET-134/126 directional throttle  - recommended if you plan to use an existing throttle lever. The  ET Actuator  (included) connects to your existing throttle cable. Optons: ET-134 has a Neutral Detent, ET-126 has a Spring Return. 
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