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Server rack batteries let a storage bank grow one unit at a time. The EG4 LifePower4 V2 is a 48V, 100Ah LiFePO4 battery delivering 5.12 kWh, with improved communication and safety features over the original model.
Planning a system? Read our guide: How to size a battery backup system for your home.
Fits whole-home backup, off-grid and hybrid solar systems, and larger multi-battery storage banks in a server rack.
EG4-LifePower4 V2 Lithium Battery | 48V 100AH | Server Rack Battery | UL1973, UL9540A | 10-Year Warranty ***Now Upgraded: Auto-addressing is being added to enhance communication with EG4 batteries and inverters and, streamline setup. ***What this means to you: The latest battery version now offers auto-addressing, making closed-loop communication faster and more reliable. Your original model remains fully compatible this upgrade simply enhances the experience for new installs at no extra cost to you. The EG4 LiFePOWER4 V2 delivers improved safety, communication, and system flexibility while maintaining the durability and performance of the original model. Built with UL-recognized LiFePO4 cells and a robust 100A BMS, this 5.12 kWh server rack battery provides long-lasting, dependable power for residential, commercial, and off-grid energy storage systems. Key Benefits: Long Battery Life: Over 6,000 deep discharge cycles at 80% DoD ensure reliable, long-term performance. High-Capacity Storage: 51.2V nominal voltage with 5.12 kWh usable energy and 100Ah capacity. Improved BMS Features: Upgraded 100A internal BMS with on/off communication switch for easier system setup. Enhanced Compatibility: CAN bus and RS485 ports support closed-loop communication with a wider range of inverters. Scalable Energy Storage: Parallel up to 64 batteries for a total of 327.7 kWh, ideal for large-scale systems. Easy System Integration: New Protocol 6 DIP switch simplifies inverter matching and battery configuration. Safety-Focused Design: Dual on-board fire arrestors and E-Stop rapid shutdown (RSD) provide additional protection in high-risk environments. Installer-Friendly Terminals: Two positive and two negative terminals offer convenient connections for chargers, inverters, or EMP shields. Certified & Tested: UL1973 Recognized Component, UL9540A passed, and UL9540 Listed with EG4 18kPV-12LV. Use Cases: This battery is ideal for whole-home backup power, off-grid and hybrid solar systems, and commercial or industrial storage banks requiring dependable, high-capacity energy. Its scalable design also supports large multi-battery energy storage systems, while the server-rack form factor ensures secure, code-compliant installation across residential and commercial environments. Tech Specs: Chemistry: Lithium Iron Phosphate (LiFePO4) Nominal Voltage: 51.2V Capacity: 100Ah Energy: 5.12 kWh BMS: 100A internal BMS Scalability: Up to 64 units in parallel (327.7 kWh max)
Warranty terms mentioned in this description are the manufacturer’s. Our own coverage is the 30-day limited warranty.
We confirm compatibility, installation requirements, and delivery details with you during order review, before any payment. Home electrical work may require a qualified installer.
Our team can confirm whether the LifePower4 V2 works with your inverter's communication protocol. Message our team on WhatsApp.
EG4
Built in the standard 19-inch server rack format, the EG4 LifePower4 V2 is a 48V 100Ah LiFePO4 battery storing 5.12kWh for residential and off-grid energy storage. It carries UL 1973 and UL 9540A listings, which are increasingly required for permitted installations in the US and Canada.
$1,176.79
EG4
This is the 24V version of the EG4 LifePower4 V2, a 200Ah, 5.12kWh LiFePO4 server rack battery for residential installations. It has a 3.5U design with flexible racking options.
$1,079.99
EG4
Planning for expansion is the point of the EG4 48V Battery Starter Kit. You choose LL-S or LifePower4 batteries, the quantity, and either a 3-slot or 6-slot rack, up to 30.72kWh.
$1,588.73
EG4
Sixteen UL Listed prismatic 3.2V cells make up the EG4 LL-S V2, a 48V 100Ah server rack battery holding 5.12kWh. It suits homeowners and installers who want a plug-and-play LiFePO4 storage block with closed-loop inverter communication, and it is UL 1973 and UL 9540A listed.
$1,626.22