26V Dual V-Mount Battery Charger The NANLITE 26V V-mount battery charger come in single or dual charging options for both WH options; 230WH (BT-V-26V230) and 270Wh (BT-V-26V270). These chargers can also be used to charge high power, big current equipment with inputs of 24V-30V including camera'd and LED lighting gears . The D-tap and 2.1pin socket, can be used for charging or discharging port.