The upgraded EG4-LL (Lifetime Lithium) Battery is a 25.6 V (24 V) 5.12 kWh LiFePO₄ energy storage solution engineered for reliability, safety, and long-term performance. Built on the proven foundation of the original industry-renowned EG4-LL, this version adds selectable closed-loop inverter communication, dual fire arrestors, and improved configurability while remaining fully compatible with previous models.

Key Benefits:

• Long-Life Performance: Rated for 7,000+ deep-discharge cycles at 80% DoD — over 15 years of daily use.
• Enhanced Compatibility: Seamless closed-loop communication with EG4, Sol-Ark, Victron, Growatt, and Schneider inverters.
• Scalable Power: Parallel up to 16 batteries (81.9 kWh total) while maintaining full BMS communication.
• Reliable Safety: Dual onboard fire arrestors for failsafe operation and added protection against rare hardware faults.
• High Efficiency: Tier-one A+ LiFePO₄ prismatic cells deliver 99% operating efficiency.
• Smart Monitoring: On-board LCD and PC monitoring software for easy system visibility.
• Future-Proof Design: Lifetime firmware updates and in-house R&D optimization from Texas-based EG4 engineers.

Use Cases:

Ideal for residential, commercial, and off-grid systems requiring safe, long-lasting, and scalable energy storage. Perfect for backup power, or off-grid setups. 

Tech Specs:

• Nominal Voltage: 25.6 V (24 V)
• Capacity: 200 Ah / 5.12 kWh
• Battery Type: LiFePO₄ (Lithium Iron Phosphate)
• Cycle Life: 7,000 @ 80% DoD
• Max Parallel Units: 16 (81.9 kWh total)
• BMS Rating: 200 A internal
• Efficiency: 99%
• Communication Protocols: RS-485 / CAN Bus (Selectable Closed-Loop)
• Display: Integrated LCD screen
• Safety: Dual automatic fire arrestors
• Included Cables: 1 ft RS-485 Comm Cable + Parallel Cables (per battery)

From purchase to installation and beyond, our USA-based team offers lifetime support—contact us with any questions.