EG4 Electronics LL V2 12V V2 400AH Lithium Iron Phosphate Battery
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EG4® LL 12V 400AH Lithium Iron Phosphate Battery – Premium Power with Lifetime Reliability
The EG4 LL 12V 400AH Lithium Iron Phosphate Battery is the latest evolution in energy storage, offering unmatched durability, efficiency, and ease of use. Engineered with EG4®’s signature Lifetime Lithium (LL) technology, this 12.8V (12V) battery delivers a powerful 5.12kWh capacity and features an advanced 200A internal BMS, making it ideal for both residential and commercial energy systems.
Built with 16 UL-listed prismatic 3.2V LiFePO4 cells, the EG4 LL 12V 400AH Lithium Iron Phosphate Battery undergoes rigorous testing through 7,000 deep discharge cycles at 80% DoD. This means users can count on over 15 years of daily use without performance degradation—thanks to its incredible 99% operational efficiency and robust cell construction.
Designed for ultimate user convenience, the battery includes an LCD screen for real-time monitoring and supports closed-loop inverter communications, including Victron and EG4. Its plug-and-play interface and compatibility with a wide range of energy setups make installation quick and easy.
Every unit includes a 1-foot RS485 communication cable and a parallel cable set. For every six units purchased, a RS485 USB battery communication cable is also included (shipped separately).
Features & Benefits
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Tier One A+ Lithium Cells – Premium quality for extended reliability
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99% Operational Efficiency – Exceptional energy output with minimal loss
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Long Lifespan – 7,000 cycles at 80% DoD; 10–20-year design life
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Flexible Installation Options – Modular design with versatile racking compatibility
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Eco-Friendly – 100% lead-free and recyclable LiFePO4 chemistry
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Built-in Smart BMS – Intelligent control for voltage, current, temperature & battery health
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Expandable System – Easily scale your battery bank without performance compromise
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Inverter-Ready – Closed-loop communication with EG4 & Victron systems
Key Specifications
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Nominal Voltage: 12.8V
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Capacity: 400Ah
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Energy Storage: 5.12kWh
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Internal BMS Rating: 200A
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Dimensions (L×W×H): 19 in × 6.1 in × 20.2 in (48.2 cm × 15.5 cm × 51.3 cm)
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Weight: 98.1 lbs (44.5 kg)
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Design Life: 7,000 Cycles @ 80% Depth of Discharge
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Communication Ports: RS485, Plug-and-Play Interface
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Display: Integrated LCD Monitoring Screen
The EG4 LL 12V 400AH Lithium Iron Phosphate Battery is the perfect choice for solar energy storage, off-grid systems, and backup power applications. It combines top-tier performance, extended life, and seamless integration into modern energy systems. Power your future with confidence—choose the EG4 LL 12V 400AH Lithium Iron Phosphate Battery today.
