EG4 LifePower4 Lithium Battery 48V 100AH | V2 Server Rack Battery – Available in 2–6 Unit Bundles
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Visit CalculatorThe EG4 LiFePOWER4 48V V2 battery maintains the sturdy design and high performance of the original model, while adding new features for an improved user experience and better system integration. This Lithium Iron Phosphate (LiFePO4) battery is composed of 16 UL recognized prismatic 3.2V cells in series, offering over 6,000 deep discharge cycles at 80% Depth of Discharge (DoD). It has a nominal voltage of 51.2V, an energy capacity of 5.12kWh, and an internal 100A Battery Management System (BMS).
The battery supports parallel connections of up to 64 units and includes a 10-year limited warranty. Improved terminal connections make it easier to attach chargers or EMP shields. The LiFePOWER4 48V V2 also features RS485 and CAN bus communication for broader inverter compatibility, along with a new Protocol 6 DIP switch for straightforward and convenient inverter and battery customization. Additionally, the E-Stop (Emergency Stop) rapid shutdown (RSD) functionality ensures fail-safe operation in high-risk environments, and dual on-board fire arrestors provide added peace of mind during operation.

5.12kWh of Usable Energy
Provides reliable power storage for daily cycling or emergency backup, ideal for 48V systems.
LiFePO4 Chemistry – Safe & Long-Lasting
Engineered with Lithium Iron Phosphate cells for thermal stability, non-toxicity, and 6,000+ life cycles at 80% DoD.
UL1973 & UL9540A Compliant
Certified for use in safe, code-compliant residential and commercial energy storage systems.
Smart BMS – Intelligent Battery Protection
Built-in Battery Management System protects against overcharge, deep discharge, short circuits, and temperature extremes.
Standard 19" Rack Mount Design
Easily integrates into rack-based systems for clean, scalable setups.
Maintenance-Free Operation
No ongoing maintenance required—just install and power up.


Everything you need is included with your product.
| PARAMETER | SPEC |
| CELL BALANCE | 120mA |
| TEMPERATURE ACCURACY | 3% |
| VOLTAGE ACCURACY | 0.5% |
| CURRENT ACCURACY | 3% |
| SOC | 5% |
| POWER CONSUMPTION (SLEEP & OFF MODE) | <300uA |
| POWER CONSUMPTION (OPERATING) | <25mA |
| COMMUNICATION PORTS | RS485/CAN |
| MAXIMUM MODULES IN SERIES | 1 |
| MAXIMUM MODULES IN PARALLEL | 64 |
| E-STOP FUNCTION | Yes |
| DIMENSION (H×W×D) | 6.1 in. × 19 in. × 17.4 in. (155 mm × 442 mm × 470 mm) |
| WEIGHT | 99.6 lbs. (45.2 kg) |
Is this battery compatible with 48V inverters?
Yes, it’s designed for seamless integration with all major 48V inverter and solar systems.
Can I use multiple batteries together?
Absolutely. The battery is parallel-capable, allowing you to expand your system easily.
What makes LiFePO4 chemistry safer?
LiFePO4 is thermally stable, non-combustible, and safer for indoor use compared to other lithium chemistries.
Does this battery include a BMS?
Yes, the smart BMS is built in, managing safety and performance automatically.
Is this battery certified?
Yes, it meets UL1973 and UL9540A standards, making it code-compliant for many jurisdictions.
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