Ideally suited for vehicles used in localities, which may have only 230 volts, this charger has an input voltage selector switch. The Auto Charge 12 DV is a fully automatic battery charger for vehicles with a single battery. Unique electronic sensing circuits sense the true battery voltage while eliminating the need for external sense wires. The maximum output of the charger is 12 amperes. When the battery is fully charged, all charging stops. There is no overcharging and no water boil off. It is ruggedly constructed for mounting in the vehicle.