ACA type (by auto)battery charger ACA120,ACA1206,ACA1208,ACA1210,ACA1212,ACA1215,ACA1220,ACA2404,ACA2406, ... control circuit,it controls the current adjustment automatically to battery voltage,when the battery voltage gets to preset value(set at user requirement),it ... automation,reliable performance and simple operation,it is suitable for battery whose voltage is 12V or 24V and the capacity is less ...