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ePropulsion Battery Chargers

An ePropulsion charger is matched to the battery, not to the motor, and the range splits along the same four families as the batteries: Spirit, eLite, E-Series and G-Series. Within each family, the choice is about how you charge rather than whether it fits – wall power, the boat's own 12V system, or solar.

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Which Charger Fits Your Battery

Spirit 1.0 Plus packs have the widest choice. The standard charger is the one most owners live with; the fast charger cuts the wait roughly in half and is worth it if you turn the boat around twice in a day rather than once. There is also a 12V unit and a solar option, both covered below.

eLite chargers follow the same three-way split at a smaller scale, which suits a motor whose whole appeal is that you carry it in one hand.

The larger fixed banks step up in current. E-Series batteries take a 25 A charger, and G-Series banks take either 16 A or 32 A depending on how quickly you need them back. These are not packs to improvise around – the battery management system on a G-Series bank expects its own charging equipment, and a generic marine charger is not a substitute. If you are unsure which pack you have, the batteries for ePropulsion motors collection lists them by family.


Charging from Solar or a 12V System

Solar is the most common question we get about these chargers, and the honest answer depends on scale. For Spirit and eLite packs, a dedicated solar charger will top up a battery over a day at anchor or keep it full through a week at the mooring. For the larger E and G banks, ePropulsion builds MPPT charge controllers rated at 1.6 kW and 2 kW that connect an array directly to the battery, which is what makes a sailboat or a moored electric launch genuinely self-sufficient.

What solar will not do is replace shore power on a busy day. A panel array feeding a propulsion bank is a topping-up and range-extending arrangement, not a fast charge. Plan around it rather than depending on it, and pair the controller with panels sized to your roof or deck space – see the solar panels we carry.

The 12V chargers are the option most owners overlook. They let you feed the battery from the boat’s existing house bank, a vehicle, or a portable power station, which turns a long tow to the ramp or a lunch stop into charging time. On a tender that gets used in short bursts all weekend, that is often more useful than a faster wall charger.