This battery is intended to operate portable military communications electronics equipment. It is used mainly in tactical radios, but is also used in sensors, chemical agent alarms, night vision equipment, and many other types of electronic equipment. Some applications use the battery for powering electric motors. This battery can power any system that utilizes the BA-5390, BA-5590, BA-5790, BB-390 or BB2590 in 12 volt mode, but utilizing half the battery footprint. A spacer may be needed if used in this way.