EA ENERGY TECHNOLOGY CO.,LTD
EA ENERGY TECHNOLOGY CO.,LTD

EA ENERGY 12.8V 400Ah LiFePO4 Lithium Battery – a cutting-edge solution engineered to replace legacy lead-acid systems in high-demand energy storage applications. With double the capacity of standard alternatives, this battery delivers unmatched endurance for solar off-grid setups, industrial backup systems, and marine/RV power networks. Its advanced lithium iron phosphate chemistry ensures stable 12.8V output across extreme temperatures (-20°C to 60°C) while supporting 100% depth of discharge. Weighing 65% less than equivalent lead-acid models, it reduces installation complexity and maintenance costs. Ideal for large-scale residential/commercial storage, telecom infrastructure, and electric vehicle conversions, this eco-friendly powerhouse offers 3000+ cycles at 80% DoD – triple the lifespan of traditional batteries. Experience rapid recharging, zero sulfation risks, and seamless integration into existing lead-acid systems.

Specifications of 12V 400Ah LiFePO4 Marine Battery

ModelEA12200Continuous Charge5A~200A
Nominal Voltage / Discharge Voltage Range12V (12.8V)Maximum Continuous Charge200 A
Nominal Capacity400AhContinuous Discharge Current200A
Stored Energy5120WhMaximum Continuous Discharge CurrentPeak 300A 30s
Weight43KG / 94.8 lbsCycle Life≥4500 Cycles
Dimension(L×W×H)520*269*220 mm  
20.79 x 10.59 x 8.66 inch
Casing MaterialSteel
Charge Temperature Range32°F~131°F
(0°C ~ 55°C)
Applicationreplace the L-CD 12V 200Ah battery
Discharge Temperature Range-4°F~131°F
( -20°C ~ 55°C)
Safety FeaturesGPS, BMS, Over Charge/Discharge,
Low/High Temp Cut-off,
Over Current, Short Circuit


Features of 12V 400Ah LiFePO4 Marine Battery

  • Long Cycle Life

    Over 3000 cycles at 80% DoD, ensuring durability for frequent marine use.

  • High Energy Density

    Compact design delivers 48V/51.2V power with 400Ah capacity, optimizing space efficiency.

  • Rapid Charging

    Supports fast charging (1-2 hours), minimizing downtime between voyages.


  • Safety & Stability

    LiFePO4 chemistry resists thermal runaway, withstands vibration and moisture in marine environments.

  • Eco-Friendly

    Zero emissions, low maintenance, and recyclable materials align with sustainable boating trends.

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