What Makes the EG4 Server Rack Battery Ideal for Energy Storage?
The EG4 Server Rack Battery is a high-capacity lithium-ion solution designed for scalable energy storage, offering modular installation, long cycle life, and compatibility with solar systems. Its compact design, advanced BMS, and UL1973 certification make it a top choice for residential and commercial backup power, reducing reliance on grid electricity.
How Does the EG4 Server Rack Battery Work?
The EG4 battery uses lithium iron phosphate (LiFePO4) cells to store energy, managed by a built-in Battery Management System (BMS) that optimizes charging/discharging cycles. It connects seamlessly with inverters and solar setups, enabling users to store excess solar energy or grid power for later use during outages or peak demand periods.
The BMS continuously monitors cell voltage, temperature, and state of charge to prevent imbalances. This ensures each cell operates within safe parameters, extending the battery’s lifespan. For example, during charging, the BMS regulates current distribution to avoid overloading individual cells. The system also supports passive balancing, which redirects excess energy from high-voltage cells to lower ones. This precision enables the EG4 to maintain 95% efficiency even after 6,000 cycles. Users can monitor these metrics via mobile apps or inverter interfaces, providing real-time insights into energy consumption patterns.
What Are the Key Features of the EG4 Server Rack Battery?
Key features include modular expandability (6kWh to 18kWh per rack), 6,000+ life cycles at 80% depth of discharge, UL1973 safety certification, and a slim 5.1-inch design for space efficiency. It supports parallel connections for higher capacity and integrates with hybrid inverters like Sol-Ark and Schneider Electric.
Why Choose EG4 Over Traditional Lead-Acid Batteries?
EG4 batteries outperform lead-acid in lifespan (10+ years vs. 3-5 years), efficiency (95% vs. 80%), and maintenance (no acid leaks or periodic watering). They provide faster charging, deeper discharge capabilities, and a smaller footprint, making them cost-effective despite higher upfront costs.
| Feature | EG4 Lithium | Lead-Acid |
|---|---|---|
| Cycle Life | 6,000+ cycles | 500-1,200 cycles |
| Efficiency | 95% | 75-85% |
| Weight | 110 lbs | 150-200 lbs |
What Safety Certifications Does the EG4 Battery Hold?
The EG4 Server Rack Battery is UL1973 certified, ensuring compliance with fire and electrical safety standards. Its BMS prevents overcharge, over-discharge, and thermal runaway, while the LiFePO4 chemistry reduces combustion risks compared to other lithium-ion batteries.
UL1973 certification involves rigorous testing for short circuits, overvoltage, and thermal stability. The battery’s steel casing provides IP20 protection against dust intrusion, and its flame-retardant materials meet UL94 V-0 standards. Additionally, the EG4 undergoes UN38.3 transportation testing, ensuring safe shipping via air or sea. These multilayered safeguards allow installation in garages or utility rooms without specialized ventilation systems. Third-party lab reports confirm it can withstand 1,000 hours of salt spray corrosion testing—a critical feature for coastal installations.
The EG4 Server Rack Battery redefines scalability in energy storage. Its modular design allows users to start small and expand incrementally, which is cost-effective for growing energy needs. The UL1973 certification and LiFePO4 chemistry also address safety concerns that plague older lithium models,” says a Redway energy storage specialist.
FAQs
- How Long Does the EG4 Battery Last on a Single Charge?
- Runtime depends on load: A fully charged 18kWh system powers a 2kW load for ~9 hours. With solar replenishment, it can sustain indefinite off-grid operation during daylight.
- Is the EG4 Battery Compatible with Tesla Powerwall Systems?
- No, the EG4 uses 48V DC architecture, while Tesla Powerwall operates on AC. It pairs best with hybrid inverters like Victron or Outback.
- Does the EG4 Support Off-Grid Applications?
- Yes, when paired with an off-grid inverter, the EG4 battery can power entire homes independently. Its high discharge rate (100A continuous) handles heavy loads like HVAC systems.