Freedom Won 30kWh marine lithium battery is a high-capacity lithium iron phosphate (LiFePO₄) battery designed for marine, off-grid, and industrial applications. With a total energy capacity of 30 kWh and 24 kWh usable at 80 % depth of discharge (DoD), it offers a long service life of over 16 years at 80 % DoD. Available in 13 V, 26 V, and 52 V configurations, this battery provides flexibility to suit various system voltages. Its IP65-rated aluminium enclosure ensures durability and resistance to moisture and corrosion, making it ideal for marine environments. Equipped with a Battery Management System (BMS), it offers protection against overcharge, overdischarge, and short circuits, ensuring safe and reliable operation.
Key Features
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Total Energy Capacity: 30 kWh
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Usable Energy: 24 kWh at 80 % DoD
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Nominal Voltage Options: 13 V, 26 V, 52 V
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Max Discharge Current: 480 A
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Max Charge Current: 480 A
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Max Recommended Inverter Power:
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25 kVA (52 V)
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12 kVA (26 V)
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6 kVA (13 V)
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Round-Trip Efficiency: 96–98 %
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Service Life: Over 16 years at 80 % DoD
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Enclosure: Aluminium, powder-coated, IP65-rated, corrosion-resistant
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Protection: Integrated BMS with overcurrent, overvoltage, undervoltage, and short circuit protection
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Cooling: Natural convection
Technical Data Table
| Parameter | Specification |
|---|---|
| Total Capacity | 30 kWh |
| Usable Capacity (80 % DoD) | 24 kWh |
| Nominal Voltage Options | 13 V, 26 V, 52 V |
| Max Discharge Current | 480 A |
| Max Charge Current | 480 A |
| Max Inverter Power | 25 kVA (52 V), 12 kVA (26 V), 6 kVA (13 V) |
| Round-Trip Efficiency | 96–98 % |
| Service Life | >16 years at 80 % DoD |
| Enclosure | Aluminium, powder-coated, IP65-rated, corrosion-resistant |
| Protection | BMS with overcurrent, overvoltage, undervoltage, and short circuit protection |
| Cooling | Natural convection |
| Dimensions (H x W x D) | 282 mm x 600 mm x 1170 mm |
| Weight | 254 kg |



























