Power your energy storage system with confidence using the EG4 LifePower4 V2 Lithium Battery—a rugged, UL-certified 48V 100Ah LiFePO4 server rack battery designed for seamless integration, long-term reliability, and high-performance scalability.

Now upgraded with auto-addressing, this version simplifies closed-loop communication with EG4 inverters and batteries—making setup faster, smarter, and more installer-friendly. Whether you're building a whole-home backup system, going off-grid, or scaling a commercial ESS, the LifePower4 V2 delivers safe, long-lasting power you can count on.

Key Features & Benefits

• ⚡ 5.12kWh Capacity @ 48V – High-energy storage with 100Ah output and 51.2V nominal voltage

• 🔄 Auto-Addressing BMS – Streamlines setup with automatic protocol detection and ID assignment

• 🔒 Enhanced Safety – Dual fire arrestors + E-Stop rapid shutdown (RSD) for added protection

• 🔧 Installer-Friendly Design – Dual terminals (2+ / 2–) and DIP switch for simplified connections

• 🔌 Smart Communication – CAN bus & RS485 ports support closed-loop communication with EG4 and other inverters

• 🧱 Modular & Scalable – Parallel up to 64 batteries for up to 327.7kWh of energy storage

• 🛡️ UL Certified – UL1973 Recognized, UL9540A tested, and UL9540 listed with EG4 18kPV-12LV inverter

• 🔋 Long Life Cycle – 6,000+ deep discharge cycles at 80% DoD = 15+ years of daily use

• 🛠️ DIY & DWY-Friendly – Rack-mountable design makes setup efficient for pros and ambitious DIYers

• ✅ 10-Year Warranty – Backed by EG4’s industry-leading support and reliability guarantee

User Manual / Documents:

• EG4 LifePower4 Lithium Battery User Manual
• EG4 LifePower4 Lithium Battery Spec Sheet
• EG4 LifePower4 Lithium Battery Connections - Paralleling Guide
  
• EG4 LifePower4 Lithium Battery Device Monitoring
• EG4 LifePower4 Lithium Battery Troubleshooting & Maintenance