The ELP400EV Battery Pack Module is a Charging and Discharging device that maintains battery packs to extend the service life and longevity. It features the ability to perform various tests which include discharging, charging, and cycle charging in the maintenance mode. The ELP400EV Battery Pack Module services various lithium batteries such as lithium iron phosphate, lithium ternary, and lithium manganese oxide. Additional capabilities include wireless data transmission and an intelligent based operating system aimed at usability.