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Absolutely, the ePropulsion Spirit 2 is fully designed for saltwater use. ePropulsion uses aerospace-grade aluminum alloy as the base material, which is naturally highly resistant to corrosion. On top of that, the motor body receives two protective coatings: an anodic oxide coating (anodizing) followed by powder coating.

The battery connection uses corrosion-resistant metal connectors with PVD (Physical Vapour Deposition) coating over a stainless steel base—a harder and more corrosion-resistant finish than standard electroplating. The motor also includes a sacrificial zinc anode that can be replaced as it wears, providing additional protection for submerged metal parts.

To keep your Spirit 2 in top condition in saltwater:

• Rinse the motor thoroughly with fresh water after every use
• Apply a light coat of WD-40 to electrical contacts monthly during the season
• Keep battery and connector caps in place when disconnected
• Inspect and replace the zinc anode when significantly worn

The ePropulsion Spirit 2 motor is rated IP67, which means it is completely dust-tight and can withstand temporary immersion in water up to 1 metre deep for up to 30 minutes without damage.

This makes it suitable for use in rain, spray, and the occasional splash—all normal conditions for a marine outboard. However, IP67 is not a rating for continuous submersion: the motor should not be left submerged or used at significant depth.

The Spirit Battery Ultra is also sealed against moisture and is designed for marine environments. As with any electrical equipment, avoid submerging the battery unnecessarily and ensure all connectors are properly capped when not in use.

The IP67 rating applies to the motor unit. Always follow ePropulsion’s guidelines for care and maintenance to maintain the motor’s protective properties over time.

The ePropulsion Spirit 2 requires significantly less maintenance than a comparable gas outboard—no oil changes, no spark plug replacements, no fuel system servicing, and no winterizing of the motor itself.

Regular maintenance for the Spirit 2 includes:

• Rinse with fresh water after every saltwater outing—this is the single most important habit for longevity
• WD-40 on electrical contacts every couple of months during the season; keep connector caps on when disconnected
• Inspect the propeller periodically for nicks, dings, or fishing line wrapped around the shaft
• Check and replace the zinc anode when it has worn down significantly (this may take 2-3 years)
• Battery care: store at 60–80% charge over winter; check charge every three months during storage; avoid depleting below 20% regularly

No engine fogging, no fuel stabilizer, and no carburetor cleaning—the electric drivetrain is inherently low-maintenance. A freshwater rinse and proper battery storage are the two habits that matter most.

The ePropulsion Spirit 2 comes with a standard 2-year warranty covering manufacturing defects in both the motor and the Spirit Battery Ultra.

If you register your motor with ePropulsion after purchase, you receive an additional year of warranty coverage, bringing the total to 3 years. Registration is free and takes only a few minutes.

Important warranty notes:

• The warranty is voided if the motor is used with third-party propellers or unauthorized accessories
• Physical damage (e.g., impact, improper transport) is not covered
• Using a third-party battery instead of a genuine ePropulsion battery may affect warranty coverage

As an authorized ePropulsion dealer, OceansEV provides after-sales support for warranty claims. If you experience an issue, contact us and we will work with you to resolve it.

Booost Mode on the ePropulsion Spirit 2 temporarily unlocks the motor’s peak power output of 3kW, compared to the standard continuous output of 2kW. This gives you more thrust and higher top speed when you need it—for instance, when pushing against a strong current, picking up speed quickly, or moving a heavier load. Boost mode automatically turns off after 1 minute, but you can activate it again for further 1-minute periods.

Boost Mode is activated through the tiller handle control. Because it draws power at a higher rate, battery runtime is shorter while Boost Mode is active. For most cruising situations, standard mode provides a better balance of speed and range.

The Spirit 2 can push very lightweight boats to planing or near-planing speeds under the right conditions. In Sport Mode, the 3kW peak output provides enough thrust to lift a light, flat-bottomed hull onto a plane—provided the boat’s total weight (boat + passengers + gear) is kept low, typically under 200–250 kg.

However, the Spirit 2 is primarily designed for displacement hull operation, where the hull moves through the water rather than on top of it. For most tenders, inflatables, and sailboat dinghies in its target weight range, it will provide efficient displacement-mode performance rather than planing speeds.

If planing performance is a priority, hull design matters as much as motor power—a flat-bottomed, lightweight inflatable RIB will plane more easily than a heavier fibreglass dinghy at the same motor power.

Top speed depends on the size, weight, and hull design of your boat, but for a typical tender or inflatable in calm conditions:

• Standard mode: approximately 8–12 km/h
• Sport Mode (peak power): up to 12–15 km/h on lighter boats

Because water resistance increases exponentially with speed, achieving higher speeds requires disproportionately more power. A lighter, flat-bottomed boat will reach higher speeds than a heavier displacement hull at the same throttle setting.

For comparison, the Spirit 1.0 Plus (3 HP equivalent) typically achieves 6–9 km/h on similar boats. The Spirit 2’s higher power output delivers a noticeably faster and more responsive ride, particularly when loaded or in adverse conditions.

The ePropulsion Spirit 2 is suitable for a wide range of small watercraft, including:

• Tenders and dinghies up to approximately 3.5–4.5 metres
• Inflatable and semi-rigid (RIB) boats
• Small sailboats (as an auxiliary motor) up to approximately 25–28 feet
• Small aluminium or fibreglass runabouts

As a general guide, the Spirit 2 is best matched to boats with a total displacement (boat + people + gear) of up to approximately 500kg to 750kg. Beyond that weight, performance will be noticeably reduced and you may want to consider the more powerful Navy 6.0 Evo (9.9 HP equivalent).

The correct shaft length depends on the height of your boat’s transom. The Spirit 2 is available in three shaft lengths:

• Extra Short (XS): for transoms 30cm to 35.5cm (11″ to 14″)
• Short (S): for transoms approximately 35.5 to 50 cm (14″ to 19.7″)
• Long (L): for transoms approximately 50–65 cm (20–25″)

Measure your transom from the top of the transom to the lowest point of the back of the boat. Note that electric outboard shaft lengths are measured differently from gas outboard shaft lengths, so do not assume your existing gas motor’s shaft length applies directly.

If you are unsure, contact us and we’ll help you choose the right shaft length for your boat.

Yes, the ePropulsion Spirit 2 is an excellent choice for inflatable boats and RIBs (rigid inflatable boats). Its lightweight design—the motor weighs approximately 10kg and the Spirit Battery Ultra approximately 10kg — makes it easy to lift and mount, and significantly lighter than a comparable gas outboard.

Additional advantages for inflatable use include:

• No fuel or fumes — safe for use around inflatable PVC/Hypalon tubes
• Quick-release battery — the battery can be removed separately for easier transport and storage when the inflatable is deflated
• Silent operation — ideal for wildlife areas, anchorages, and marine parks where noise restrictions apply

Ensure your inflatable’s transom is rated for a motor of the Spirit 2’s weight. Most inflatables 2.8 m and larger with a solid transom are suitable.

Yes, the ePropulsion Spirit 2 is an excellent auxiliary motor for sailboats, and one of its strongest use cases. Several features make it particularly well-suited to sailing:

• Hydrogeneration: when sailing at 4 knots or more with the motor in neutral, the Spirit 2 uses water flowing past the propeller to generate electricity and recharge the battery. This is unique to the Evo-series motors (including the Spirit 2) and can meaningfully extend your range on longer passages.
• Silent operation: no engine noise at anchor or under sail
• Tiller lock: the tiller can be fixed in position so your boat’s rudder handles steering

For most sailboats up to approximately 25–28 feet, the Spirit 2 provides adequate motoring power for harbour manoeuvring, calm-weather motoring, and backup propulsion.

The ePropulsion Spirit 2 is best suited for boats with a total displacement (vessel + passengers + gear) of up to approximately 500kg to 750kg. Within this range, it will provide confident performance at cruising speeds with reserve power available via Sport Mode.

Above 750kg the motor will still function but performance—particularly top speed and the ability to make headway against current or wind—will be reduced. That said, it is not uncommon to be able to easily reach 4-5 knots on a boat weighing 1,500kg (3,300lbs). There are several factors that affect the speed and range you can achieve.

For heavier boats, ePropulsion’s Navy 6.0 Evo (9.9 HP equivalent) is a more appropriate choice.

If you are unsure whether the Spirit 2 is the right match for your boat’s weight, contact us and we can help you choose.

Hydrogeneration on the Spirit 2 works on any vessel that is moving through the water with the motor in neutral—not just sailboats. The propeller spins as water flows past it, generating electricity through the motor acting as a generator.

In practice, however, hydrogeneration is most useful on sailboats, where the wind provides propulsion and the motor can be left in neutral for extended periods. On a motorboat, you would need a separate source of propulsion (such as a second motor) to move the boat while the Spirit 2 generates, which is an uncommon setup.

Hydrogeneration requires a minimum boat speed of 4 knots to generate meaningful power, and is automatically disabled above 19 knots to prevent overcharging. Hydrogeneration requires a genuine ePropulsion battery—it does not work with third-party batteries. It will also automatically stop once the battery reaches 90% charge.

Range on the ePropulsion Spirit 2 varies based on speed, boat type, and conditions. The figures below are approximate for a typical tender or inflatable in calm conditions:

• Full throttle (Sport Mode): approximately 8–12 km
• Cruising speed (~50% throttle): approximately 20–35 km

Because water drag increases exponentially with speed, running at half throttle more than doubles your range. For the best balance of speed and range, a cruising speed around 50–60% throttle is recommended.

If you need more range, the Spirit 2 can be connected to an E-series external battery (E60, E100, or E163) for significantly extended operation. Sailboat users can also take advantage of hydrogeneration to partially recharge the battery while sailing at 4 knots or more.

Charging time for the Spirit 2’s Spirit Battery Ultra depends on which charger you use:

• Standard charger: approximately 5 hours from empty to full
• 12V DC charger: suitable for charging from a boat’s 12V system or vehicle; slower than the standard charger
• Solar: varies by panel output and available sunlight; see the Spirit 2 Solar Charge Controller

The Spirit Battery Ultra does not need to be attached to the motor to charge — it can be removed and charged indoors with a standard 110V/120V outlet. The standard charger is included with the Spirit 2; 12V charger and solar charge controller are available separately.

The ePropulsion Spirit 2 battery (Spirit Battery Ultra), is a 1,382 Wh NMC lithium battery. Runtime depends heavily on throttle level, boat weight, wind, and current conditions.

At full throttle, expect approximately 1 hour of runtime. At a comfortable cruising speed (around 50% throttle), runtime typically extends to 2.5–3 hours. If you are sailing and using the Spirit 2’s hydrogeneration feature, the battery can be partially recharged while underway, further extending your effective range.

For greater range, the Spirit 2 can also be connected to an E-series external battery (E60, E100, or E163) via the E-series battery adapter.

Yes, the Spirit 2 battery (Spirit Battery Ultra) can be charged using solar panels, making it ideal for extended sailing or cruising. You will need the Spirit 2 Solar Charge Controller, which manages the charging process safely.

Compatible solar panels must meet the following specifications:

• Output: 100W to 180W
• Operating voltage: 12V to 35V
• Maximum current: 10A
• Connectors: MC4

Many third-party solar panels that meet these specs are compatible. Solar charging can be done while the motor is in use or while it is off. You can also charge the Spirit 2 battery simultaneously with a solar panel connected and the battery installed on the motor, making it a set-and-forget solution for boats with permanent solar installations.

To check the charge level of the Spirit 2’s Spirit Battery Ultra, press the button on the battery to display the current charge level via the built-in LED indicator array. Each LED segment represents a portion of the total capacity.

When the motor is running, battery level is also displayed on the tiller display in real time, helping you plan your return to dock before the charge gets too low. As a best practice, aim to recharge when the battery reaches 20% rather than running it to empty, as regularly depleting below 20% shortens battery lifespan.

Proper winter storage of the Spirit Battery Ultra will protect its lifespan and ensure it is ready to go in spring. Follow these steps:

1. Charge to 60–80% before putting the battery into storage. Do not store it fully charged or fully depleted.
2. Store in a cool, dry location with an ambient temperature between 15°C (59°F) and 25°C (77°F). Avoid freezing temperatures, which can permanently damage lithium cells.
3. Check the charge every three months. If the battery has dropped well below 60%, top it up. The battery will enter a deep sleep mode at low charge, which causes self-discharge to slow — but if it reaches true zero, it may be unrecoverable.
4. Keep it indoors — an unheated garage or shed is acceptable if temperatures stay above freezing, but a heated space is preferable.

Do not store the battery in direct sunlight or in a vehicle that can get very hot. With proper storage, your Spirit Battery Ultra will be in good condition for many seasons.

No, you can use a battery extension cable to connect to a battery that is up to 3m away from the motor. You can also connect the Spirit 2 to an E-series battery (E60, E100 or E163) for greater range.

With the Spirit 2, you can use a battery extension cable to connect to a battery that is up to 3m away from the motor. You can also connect the Spirit 2 to an E-series battery (E60, E100 or E163) for greater range.

Serial numbers are required to register your warranty with the manufacturer and to obtain service or warranty coverage. Here’s how to find the serial number of your electric outboard.

Spirit 1.0 Plus

Find the Spirit 1.0 Plus serial number on the left side of the mounting bracket.

eLite

The eLite serial number is located on the right side of the motor, near the base of the tiller.

Spirit 2

Find the serial number of your Spirit 2 in the battery bay.

RemigoOne/RemigoOne Neo

The serial number for your RemigoOne/RemigoOne Neo can be found on the edge of the motor opposite the propeller. It may be above or below the tiller bracket (or it may be covered up by the tiller bracket) depending on where it’s positioned on the body.

Lithium iron phosphate (LiFePO₄ or LFP), which is used in the Spirit 1.0 Plus/Evo and nickel manganese cobalt (NMC), which is used in the Spirit 2 are both lithium-ion battery chemistries. The key differences come from the cathode material, which directly affects lifespan, cost, weight, and performance.

What Is a LiFePO₄ (LFP) Battery?

LiFePO₄ uses lithium iron phosphate as the cathode material.

Strengths

• Very stable chemistry
• Lower risk of thermal runaway
• Long cycle life (often 3,000–6,000+ cycles)
• Typically lower cost per kWh
• Excellent for deep cycling

Trade-offs

• Lower energy density
• Slightly heavier and larger for the same capacity
• Slightly lower nominal voltage per cell (~3.2V)

What Is an NMC Battery?

NMC (Nickel Manganese Cobalt) batteries use lithium nickel manganese cobalt oxide as the cathode.

Strengths

• Higher energy density
• Lighter weight for same capacity
• Higher nominal voltage per cell (~3.6–3.7V)
• Charges faster
• Strong performance in high-demand applications

Trade-offs

• Shorter cycle life (typically 1,000–2,000 cycles depending on design)
• More sensitive to heat
• Generally higher cost
• Requires more advanced battery management

Summary

Both LiFePO₄ and NMC are lithium-ion batteries. The difference lies in their cathode chemistry, which affects safety, longevity, cost, and weight.

• LFP = durable, stable, long-lasting
• NMC = lighter, higher energy, more compact

Although LiFePO₄ battery chemistry is generally considered more thermally stable and less prone to combustion under abuse conditions, NMC batteries which operate at higher energy density can be just as safe when properly designed and managed by a robust battery management systems (BMS), as we expect epropulsion has done with the Spirit Battery Ultra.

It’s perfectly normal for a your battery charger to get quite warm, but it should not get excessively hot.

Moderate warmth during charging is expected, especially in the constant current phase (charging starts at a high current—usually the max safe current for the battery. This phase continues until the battery reaches a preset voltage, typically around 4.2V per cell).

Higher temperatures may occur if there’s poor ventilation around the charger. Always ensure the charger is at least 30cm away from all other objects, and charge in a well-ventilated room. A garage, a shed or outside on a porch is ideal.

If the charger is too hot to touch comfortably or emits a burning smell, it could indicate a problem. Discontinue use and contact us immediately.

If the battery charger has been charging the battery for longer than expected but the LED on the battery is still red, the charger is still trickle-charging the battery (the final 10% or so of the charge cycle, which can take a disproportionately long time compared to the first 90%). If you were to remove the charger and connect the battery to the motor, it may even register as 100% charge. This is normal and helps protect the battery. Eventually the charging LED will turn blue and current will stop flowing to the battery entirely.

​The battery has a safety mechanism—an electronic charge management system—that prevents it from being overcharged.

Hydrogeneration is used to create electricity and is used in hydroelectric power stations and an electric vehicle’s regenerative braking system. During hydrogeneration, water passively spins the propeller on the motor which generates electricity through electromagnetic induction.

ePropulsion is the first motor manufacturer to introduce hydrogenation into their motors.

On a sailboat with an ePropulsion electric motor, it requires the boat to be moving on it’s own from the wind, and travelling at a minimum of 4 knots. If you’re travelling greater than 19 knots, hydrogeneration is automatically disabled to prevent the motor from overcharging.

Hydrogeneration is available with the Spirit 1.0 Evo, Spirit 2, Navy 3.0 Evo, Navy 6.0 Evo or an Pod Drive 6.0 Evo motor (the folding propeller is not compatible). It requires a genuine ePropulsion battery.

To use hydrogeneration, place the Evo control in the neutral position, and turn on the hydrogeneration function in the control setting (which is on by default). The motor remains in a power-on state.
Hydrogeneration will automatically stop once the battery has reached a 90% charge.

Yes, many 3rd-party solar panels can be used as long as they meet the following specs:

• 100W to 180W
• Operating voltage of 12V to 35V
• Maximum of 10A
• MC4 connectors

To connect a 3rd-party solar panel, you’ll need the Spirit 1.0 solar charge controller or the Spirit 2 solar charge controller.

Yes, you can have a solar panel permanently connected and be charging while you’re using it or while you’re not.

ePropulsion batteries are designed for maximum efficiency, performance and safety. Using 3rd-party batteries does not allow for the use of the communication cable which brings data accuracy to the gauge and ensures useful operating strategy for safety and performance.

Finally, if there’s an issue with the motor, using a genuine ePropulsion battery ensures the warranty won’t be voided by use of a 3rd-party battery.

All this being said, many boaters successfully utilize 3rd-party batteries without issues.

While no mining process can be deemed entirely environmentally friendly, whether it’s for resources like tin, copper, coal, or oil, it’s essential to understand the broader context. Humans have been engaged in mining and drilling activities for thousands of years, particularly in the recent past for oil, which has been extensively used for powering vehicles, producing plastics, and generating various non-recyclable by-products in the developed world.

The oil industry, in particular, has witnessed several significant environmental catastrophes due to mishaps at drilling sites or transportation errors, causing extensive harm to oceans and ecosystems.

In contrast, there have been no recorded incidents where lithium mining or its transportation led to the contamination of the world’s oceans.

Absolutely!

All ePropulsion LiFePO4 batteries boast a remarkably long lifespan with at least 3000 charge cycles, translating to a potential 20-30 years before reaching their end of life.

When that time comes, they are fully recyclable. These batteries can be either repurposed for another role or reconditioned for continued use. Unlike oil and its by-products like sulphur, once the materials in a LiFePO4 battery are used, they can be recycled and utilized again and again.

Yes, all ePropulsion outboards are designed for use in saltwater. ePropulsion uses high-quality, aerospace-grade aluminum alloy, which is naturally highly-resistant to corrosion, as the base material.

Protective Coatings

On top of the aluminum alloy are two protective coatings. An anodic oxide coating (anodizing) is applied to aluminum alloy, and then it’s powder coated.

Pod drives require additional corrosion protection since they remain submerged in saltwater for years at a time. A hard anodic oxidation coating and Teflon coating to replace the normal anodic oxide coating and the powder coating.

Metal Connectors

To improve the connector durability, Spirit 1.0 Plus and Spirit 1.0 Evo feature a metal connector between the power cable and the battery. The base material is stainless steel, and PVD (Physical vapor deposition) processing is applied to the connector. PVD coating is harder and more corrosion resistant than coatings applied by a standard electroplating process. So after hundreds of times connecting and unplugging, the metal connector can still be corrosion-resistant.

Anodes

Sacrificial zinc anodes add further corrosion protection, and can be easily replaced as needed.

Tips for Keeping Your Electric Motor Corrosion-Resistant in Saltwater

Don’t keep your outboard immersed in saltwater permanently. Remove it from the water after each use and rinse it with fresh water. It’s so light and quick to remove (and even quicker if it’s an eLite!) and there is no fuel smell or fumes to worry about, so there’s really no excuse not to stow away indoors once it’s dry.

It’s also important to avoid scratches that could damage the protective coatings. If you happen to scratch the motor body, contact us (and include a photo of it) for inspection. Early damage control and repair will prevent it from getting worse.

Spirit Battery Plus batteries take about 8 hours with the standard charger, or about 3.5 hours with the fast charger.

The Spirit battery does not need to be connected to a Spirit outboard in order to charge. You can charge your battery with a regular 110V outlet using the standard charger or fast charger. A standard charger is included with your ePropulsion electric outboard.

The Spirit 1.0 and Spirt 2 battery can also be charged with a solar panel using a solar charge controller, or with a 12 volt charger.

Spirit 1.0 Plus/Evo

• Spirit 1.0 standard charger
• Spirit 1.0 fast charger
• Spirit 1.0 Solar Charger Controller
• Spirit 1.0 12V/24V Battery Charger

Spirit 2

• Spirit 2 charger
• Spirit 2 12V charger
• Spirit 2 solar charge controller

Yes, although we recommend using genuine ePropulsion batteries with ePropulsion motors. In addition, any models that feature hydrogeneration require a genuine ePropulsion battery to take advantage of it.

For the 3rd-party batteries specs, the nominal battery rated voltage should be 48V, and the continuous discharge current should be over 62.5A (Navy 3.0 Evo and Pod Drive 3.0 Evo), and 125A (Navy 6.0 Evo and Pod Drive 6.0 Evo). To ensure at least one hour duration, the battery capacity should reach at least 3000Wh or 6000Wh.

When powered by 3rd-party batteries, the ePropulsion motor cannot access the real-time battery status nor apply the best operation strategy.

If any malfunction occurs due to the 3rd party batteries, the warranty will also not apply.

There are a number of factors that can impact the lifespan of your ePropulsion battery, which include:

• Avoid regularly depleting the battery less than 20%: If you regularly run your battery below 20%, it will decrease the lifespan of your battery. We recommend charging your battery when it reaches 20% whenever possible. It’s OK to occasionally deplete it to as low as 5% but try not to fully deplete it. You can always purchase a second Spirit Battery Plus or Spirit Battery Ultra or an E-series battery if you need more range.
• Employ good charging habits: While it’s good practice not to deplete your battery less than 20%, it’s better for the battery health to deplete to a 20% to 50% charge before charging it. If you regularly charge your battery when it’s already at 60% or more it will reduce the lifespan.
• Avoid temperature extremes: Avoid storing your battery at below freezing temperatures. ePropulsion recommends storing your battery in a dry location with an ambient temperature between 15°C (59°F) and 25°C (77°F). The battery should always be charged at between 5°C (41°F) and 30°C (86°F). Never use your battery to power the motor when the temperature is below -10°C (14°F) or above 60°C (140°F). Charging, discharging and storing your ePropulsion Spirit Plus battery within moderate temperatures within the ranges above will help maximize the battery’s lifespan.
• Keep it semi-charged over the winter: Before storing your battery for the winter, charge it to 60%-80%. The battery will slowly discharge until it hits 60%. When the battery has not been used in a while and hits 60% charge, it will go into deep sleep mode. In deep sleep mode, the battery self discharges more slowly than normal. To wake it up in the Spring, simply plug the battery into the charger. It is recommended that you plug in the battery once every three months when not in use in order to check the state of charge. If it has fallen much below 60%, repeat the step above. If you store your battery for a long period of time with less than 60% charge, it may self discharge to 0%. If the battery deeply discharges to a true zero percent charge, it will not be able to be recovered and you will need to purchase a new battery.

ePropulsion are rated for at least 500 cycles at 80% depth of discharge (DoD). This means that you should expect to be able to use your ePropulsion Spirit at least 500 times, running the battery from 100% to 20% each time.

All lithium batteries degrade over time, losing about 1% to 3% of their capacity each year. There are a number of factors that can impact the lifespan of your ePropulsion battery, but if you take good care of it, you can expect to get about 7 years of useful life from the battery. After about 7 years, the battery will likely still be usable, but will have significantly less capacity than it did when it was new. At this point, you can purchase a new battery.

The internal battery in the RemigoOne uses premium LG cells, rated for 1000 cycles (before they reach 80% of original capacity). What this means is that if you’re charging it each day 20% to 100% for 100 days per season, it should last for 10 years before experiencing significant capacity loss.