5.12kWh 48V 100Ah LiFePO4 Rack Battery | FogStar ESR51.2V

The FogStar ESR51.2V is a 5.12kWh rack-mounted 48v lifepo4 battery built with Grade A EVE LF100LA cells. It combines automatic self-heating for cold weather charging, an LCD touchscreen for inverter protocol selection, a 125A DC circuit breaker and a 10-year manufacturer warranty.

48v lifepo4 battery key features

• Usable capacity, 5.12kWh fully usable, 48V 100Ah rated
• Cells, Grade A EVE LF100LA LiFePO4 cells
• Cycle life, 4000 cycles at 80% depth of discharge
• Cold weather charging, automatic internal heating activates below 5°C, allowing safe charging down to -20°C
• Protocol selection, LCD touchscreen with pre-loaded protocols for Victron, Pylontech, Growatt, Sofar, Solis, GoodWe and others, no BMS software required
• Protection, PACE 100A BMS and included 125A DC circuit breaker
• Expandability, up to 32 batteries in parallel, 31 with Victron systems

Applications

Suited to residential solar energy storage, hybrid inverter systems and off-grid installations. The self-heating function means it can charge reliably in unheated garages, plant rooms and outbuildings through winter without operator intervention. It also works well as part of an expandable battery bank for growing solar systems.

Compatibility note

The ESR48V and ESR51.2V models are not compatible with other rack battery brands. Do not mix with batteries from other manufacturers, and check system compatibility before ordering if unsure.

What's in the box

• 1 x FogStar ESR51.2V 5.12kWh rack battery
• RS232 to USB communication cable
• 35mm² positive battery cable
• 35mm² negative battery cable

Installation notes

This battery must be installed by a qualified installer, indoors or in a protected enclosure. Select the correct inverter communication protocol on the LCD before connecting, and follow the FogStar installation guide for parallel wiring, fusing and cable sizing.