Self-heating 48V server rack battery  is designed for cold weather using!

Can safely charge at temperatures down to -20°C (-4°F) by a standard charger or solar charger. 

The heater pads which draws power from the charger itself.

RX-LFP48100-H  

Nominal voltage ：51.2V

Nominal capacity@0.2C ：100 Ah

Min. capacity@0.2C：100 Ah

​Nominal energy :5120Wh

Dimesion(W*D*H):482.6x460x133mm | 19 x 18.1 x 5.23 inch

Weight: ~47kg (103.6lb)