Nuwon Energy
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LFP Boat Battery Liquid Cooled 51.2V 102V 144V 30kwh 50kwh 70kwh Lithium Iron Electric Boat Battery Pack with PDU
51.2V 280Ah Marine Lithium Battery Standard Module:
| MODEL | 51280 |
| ELECTRICAL SPECIFICATIONS | |
| Cell Type - Chemistry | Prismatic lifepo4 cell - 280Ah, 1P16S |
| Rated Capacity | 280Ah |
| Rated Voltage | 51.2V |
| Energy | 14,336Wh |
| Dimensions (L x W x H) | L870 * W500 * H242mm |
| Weight | About 110Kg |
| Housing Material | Lower case aluminum alloy, upper cover stainless steel |
| Enclosure Protection | IP67 |
| DISCHARGE / CHARGE SPECIFICATIONS | |
| Discharge Cut-off Voltage | 40V |
| Max Continuous Discharging Current (@25℃) | 280A max |
| Peak Discharge Current (@25℃) | 560A for 30 seconds |
| Charging Limited Voltage | 58.4V |
| Max Charging Current (@25℃) | 140A |
| Recommend Charge Current (@25℃) | Less than 140A |
| TEMPERATURE SPECIFICATIONS | |
| Charge Temperature Range | 0 ~ 45℃ |
| Discharge Temperature Range | -20 ~ 55℃ |
| Recommended Operating Temperature | 15 ~ 35℃ |
| Storage Temperature & Humidity Range (Less than 1 month) | -20 ~ 35℃, 45 ~ 75%RH |
| Storage Temperature & Humidity Range (Less than 6 months) | -10 ~ 35℃, 45 ~ 75%RH |
| Recommended Storage Temperature & Humidity Range | 15 ~ 35℃, 45 ~ 75%RH |
| OTHER SPECIFICATIONS | |
| Cooling Method | Built-in PI heating film, Built-in liquid cooling plate |
Our lithium batteries are ideal for yachts, fishing boats, passenger vessels, workboats, and research ships for both propulsion and auxiliary energy storage systems.
Since 2011, we have specialized in customized lithium battery solutions. Our production covers electric vehicle batteries, electric boat batteries, industrial energy storage batteries, home storage packs, and electric motorcycle batteries.
With a dedicated technical team possessing over 14 years of experience, we customize battery systems from 12V to 1000V and 10Ah to 1000Ah. Under strict adherence to ISO 9001 and IATF16949 standards, every production stage is closely audited.
Our battery packs conform to R100, IEC, and CE safety standards. Each module undergoes a strict quality control workflow including 25 inspection items such as capacity, air-tightness, discharge, charging, and insulation tests before dispatch.
Liquid cooling ensures uniform thermal management across cells, preventing localized overheating under high loads. It extends overall battery service life and maintains consistent discharge rates even in high-temperature marine environments.
Yes, our standard modules support series connection to increase operating voltage and parallel connection to scale up capacity. This flexibility allows for modular customization to fit varying sizes of commercial or recreational vessels.
The integrated high-precision BMS monitors cell voltage, battery pack current, and internal temperatures in real-time. It safeguards the system against overcharging, over-discharging, short circuits, and thermal runaway.
The battery packs are designed to follow R100, IEC, and CE guidelines, and undergo rigorous testing matching DNV certification requirements. This ensures safety and durability in harsh saltwater operations.
Using Grade-A LiFePO4 chemistry, the cells offer a lifespan rating of ≥6000 cycles at standard operating parameters, delivering significantly longer service life compared to traditional lead-acid or standard lithium-ion batteries.
Every battery pack undergoes 100% OQC testing covering 25 test points. These include capacity confirmation, air tightness tests (for water resistance), insulation integrity check, charge-discharge curve analysis, and BMS safety logic testing.
