EG4 LL-S 48V 100Ah LiFePO4 Server Rack Battery (V4) | 5.12kWh UL1973 UL9540A
The EG4 LL-S 48V 100Ah LiFePO4 Server Rack Battery (V4) is a high-performance battery engineered for serious solar and backup power systems. It features 5.12kWh of usable energy and a 100A internal BMS, making it ideal for demanding off-grid, grid-tie with backup, and commercial applications where reliability, safety, and long life are non-negotiable.
Built from sixteen UL-listed 3.2V prismatic cells, the EG4-LL-S is tested to 7,000 deep discharge cycles at 80% depth of discharge, delivering over 15 years of daily use. It offers industry-leading 99% operating efficiency along with advanced BMS protections for voltage, current, temperature, and short circuits. Featuring selectable closed-loop communication with major inverter brands and easy plug-and-play rack mounting, this battery is an ideal backbone for scalable energy storage systems.
Key Features
Battery Type: Lithium Iron Phosphate (LiFePO₄) server rack battery
Energy Storage: 5.12kWh usable capacity at 51.2V, 100Ah
Cycle Life: Rated for 7,000 cycles at 80% depth of discharge
Design Life: 15+ years with daily deep cycling
Cell Quality: Tier One A+ prismatic cells with 99% operating efficiency
BMS: Integrated EG4 Smart BMS with voltage, current, temperature and health management
Closed-Loop Communication: Selectable support for Schneider, Sol-Ark, Victron, Growatt and EG4 inverters
Parallel Capability: Parallel up to 64 batteries for large banks up to 327.6kWh while maintaining BMS communication
Compatibility: Fully compatible with previous EG4-LL models and can serve as a master battery for V1 banks (with firmware update)
Safety Features: Dual onboard automatic fire arrestors, E-Stop capability (when used with appropriate shutdown hardware), and full short-circuit and temperature protection
Monitoring & Control: On-board LCD screen, PC monitoring software and lifetime firmware updates
Environmental: Lead-free design with high efficiency and reduced waste over service life
Certification: Entire battery UL1973 and UL9540A tested and rated
Support: 10-year warranty, supported and serviced out of Texas
Included Components
Communication Cables: One 1 ft RS485 communication cable and one set of parallel cables per battery
USB Communication: One RS485 USB battery communication cable per six batteries (shipped separately)
Specifications
Nominal Voltage: 51.2V
Nominal Capacity: 100Ah
Energy: 5.12kWh
Dimensions: 17.7 in x 19.3 in x 6.1 in
Weight: 99.6 lbs (45.2 kg)
Design Life: 15+ years at 80% DoD
Links
- EG4 LL-S 100AH – MANUAL
- EG4 LL-S 48V 100A – SPEC-SHEET
- INSTALLING EG4 LL-S WITH OTHER BATTERIES
