Safe and powerful batteries for the marine environment
Marine electric batteries – safe, powerful & waterproof
The ePropulsion range of marine electric batteries are designed for high performance and the harsh marine environment. These lithium iron phosphate batteries (LiFePO4) electric outboard batteries and eSeries batteries offer cleaner power and are incredibly energy efficient.
The ePropulsion battery range goes from 1 kWh to 144 kWh output (when used in parallel) to complement ePropulsion’s industry leading electric motors. All ePropulsion batteries can be charged at the same time as discharging power, with solar or hybrid generated power.
Durable lithium batteries for electric boating
The new E60 and E163 are designed for safe, reliable, high performance boating.
A single E60 battery can support the Navy 3.0 Evo outboard full power output. And, the E163 will support the Navy 6.0 Evo (9.9HP equivalent) full power. With a three times higher energy density these batteries weigh 70% less than lead-acid batteries of equivalent capacity.
Real time battery monitoring displays SOC, voltage, current and range information so you can easily see the battery’s status.
The batteries are simple to operate and install by hand – no tools required. They are fully waterproof rated to IP67 with a long life cycle. For recharging the batteries have 1C Rate Fast Charging.
E Series batteries
The high performance E Series batteries will power any ePropulsion outboard or POD motor, as well as other brands of 48V systems for marine propulsion, domestic or solar systems. All ePropulsion batteries are recyclable.
The batteries are designed for a long lifespan. Even when used daily over many years, you can expect a life of 3000 cycles to 80% of the original capacity.
The built in Battery Management System means that the cells will only discharge to a maximum safe level to protect and extend the battery life. When not in use, the batteries will ‘hibernate’ and discharge themselves, so there is no need for any manual discharging. Up to 16 eSeries batteries of the same model can be connected in parallel to an ePropulsion motor and additional rechargers are available.
Why should you choose Lithium Iron Phosphate batteries?
Need to understand more? Read these two blogs with great explanations:
Why you should choose Lithium Iron Phosphate batteries
What are the benefits of LiFePO4 batteries
|Chemistry||Lithium Iron Phosphate (LiFePO4)||Lithium Iron Phosphate (LiFePO4)|
|Rated voltage||51.2 V||51.2 V|
|Capacity||8345 Wh / 163 Ah||3072 Wh / 60 Ah|
|Battery life||3,000 cycles at 80% DOD||3,000 cycles at 80% DOD|
|Weight||32 kg||78 kg|
|Dimensions||512 x 290 x 300 mm 20.2 x 11.4 x 11.8 in||470 x 295 x 495 mm 18.5 x 11.6 x 19.5 in|
|Cut-off voltage||41.6 V||41.6 V|
|Final charging voltage||57.6 V||57.6 V|
|Max continuous discharging current||70 A||150 A|
|Parallel connection||Up to 16||Up to 16|
|Charger||New E-Series battery charger||New E-Series battery charger|
|Charging time (220V)||One charger: 2.7 hours Two chargers in parallel: 1.3 hours||One charger: 7.2 hours Two chargers in parallel: 3.6 hours|
|Charging time (110V)||One charger: 4 hours Two chargers in parallel: 2 hours||One charger: 11 hours Two chargers in parallel: 5.4 hours|
|Charging temperature||0°C to 55°C 32˚F to 131˚F||0°C to 55°C 32˚F to 131˚F|
|Discharging temperature||-10°C to 60°C 14˚F to 140˚F||-10°C to 60°C 14˚F to 140˚F|
|Communication||Available: CAN-Bus for Parallel RS485 for ePropulsion motors||Available: CAN-Bus for Parallel RS485 for ePropulsion motors|
|Shipping classification||UN3480, Class 9, UN38.3 Certified||UN3480, Class 9, UN38.3 Certified|
|Approvals||CE, FCC||CE, FCC|
|Warranty (non-commercial use)||2 years||2 years|
Connect in parallel and use with your electric outboard too
All ePropulsion electric marine batteries are designed for maximum efficiency, performance and safety.
The lithium E Series batteries are compact and energy dense and weigh 75% less than the equivalent lead acid battery. They are designed to achieve the most efficient unit price on the market, as low as $0.46 per WattHour.
Multiple E Series batteries of the same size can be connected in parallel, to increase power output. Each model has a different battery management system and cell configuration, hence only the same model can be connected in parallel.
The Spirit 1.0 Plus and 1.0 Evo electric outboard motors can be connected to the E Series batteries for longer range use, instead of using the integrated electric outboard battery.
It is possible to use a 3rd party lead acid battery with the ePropulsion range, although the ePropulsion motor will not be able to access real time battery status.
Comparison of E Series with AGM battery
E 80 battery
4 x 12 volt 130 AH AGM batteries
Live test of ePropulsion E Series battery
Testing was done in a 26ft sailing yacht with a displacement of approximately 2 tons.
Set up with an ePropulsion 3kW motor and one E-175 series battery with a capacity of 9kWh.