E&J BMS plant design the top quality BMS with active balancing function which can balance the battery during charging/discharging/stand by situation to extend the battery life. The BMS with the active balancing current from 0.1A to 5A for optional and it moving the energy from higher voltage cell to the lower voltage cell. We support custom development for different cell packs cover SAMSUNG PANASONIC SONY li-ion battery packs, and Yinglong Toshiba LTO battery packs, CALB A123 VALANCE BYD THUNDERSKY Lifepo4 battery packs, etc..