-Car battery automatic recharging device. when the leisure battery voltage exceeds 13.6v (battery charger and/or solar panel are charging), the device allows to recharge the car battery (through the leisure battery).-Charging current is set to max 4a, according to the batteries’ condition.-When the leisure battery voltage is lower than 12.5v, the car battery recharging system is deactivated.-When the green led is on, it means that the csb-2 is ready to recharge the car battery if necessary.-Dimensions: 80 x 50 x 50mm
