When the leisure battery voltage exceeds 13.6v (battery charger and/or solar panel are charging), the device allows to recharge the car/van main 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.
