DEWIN 48V Battery Balancer, Battery Equalizer 4 x 6V-12V Battery Balancer for Solar Lead Acid Lithium Batteries - ShopVlot

Battery balancer: The battery equalizer has an intelligent voltage compensation system to keep the battery in standby and automatically shut off when the voltage is insufficient, extending the battery life. Function: The 48V battery balancer can be connected in series with the battery for a long time to maintain the charge and discharge balance between the batteries connected in series. Durable: The battery equalizer can maintain balance in both charging and discharge direction. Reverse polarity