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The Vatrer 48V 100Ah is a rack-mount LiFePO4 solar battery rated at 5.12 kWh per unit, sold here as a four-pack. It stands out for built-in heating, so it can charge in cold conditions where many lithium batteries cannot, and a 100A smart BMS that watches voltage, current and temperature. Vatrer rates the EV-grade cells at over 5,000 cycles at 100% depth of discharge, far beyond the few hundred cycles of lead-acid. It suits off-grid and backup solar setups that need a lot of stored energy in a standard server-rack footprint. Against bare rack batteries from budget brands, the heating and WiFi monitoring are the differentiators; against premium names, expect fewer years of field data behind it.
In stock
Lowest price we've seen: $3,999.99 on Nov 11 at Vatrer. Tracked across 1 store since Nov 11.
This is a 4-pack of Vatrer 48V (51.2V) 100Ah server rack lithium batteries with self-heating and WiFi. Each battery stores 5120Wh (5.12kWh) and uses EV-grade LiFePO4 cells. The cells are rated for over 5000 charge cycles at 100% depth of discharge.
A built-in 100A BMS monitors voltage, current and temperature in real time. It protects against overcharge, overdischarge, overcurrent, short circuit and extreme temperatures, and it balances the individual cells. A heating function allows charging in cold weather. When the battery temperature drops to 32°F, the internal heater turns on during charging. At 41°F it stops and normal charging continues.
A touchscreen, Bluetooth and a WiFi module show state of charge, voltage, current, temperature and battery status, locally or through the Vatrer app. WiFi also allows remote monitoring, configuration changes, OTA firmware upgrades and multi-battery management. The rack-mount case fits energy storage cabinets or battery racks and can be installed horizontally or vertically.
