TypePack Figuration Cell Fuel Gauge 
 BBU 6S1P Cylindrical TI
 BBU 2S2P Cylindrical TI
 BBU 750W Cylindrical TI
 BBU 20KW Cylindrical TI

BBU(backup battery unit) provides power to a system when the primary source of power is unavailable. BBU ranges from small single cells to retain clock time and date in computers, up to large battery room facilities that power uninterruptible power supply systems for large data centers.
BBU will actually work properly during a power failure. With such maintenance, complete data loss may be a risk during a power failure in the worst case.The BBU can be replaced without interrupting system operation.
ETICA has a rack-mounted backup power solution for servers, data centers, and other critical-power environments. The BBU provides up to 10kW of output power with only a height of 1U and communicates with the DC Power Shelf.