... charge current :6ARated charge current : 4ABattery types : DC 6V/12V ,ACID BATTERYRechargeable battery capacity : 20Ah do 120AhPlastic shellThe power cord : 1.8M ... ,short circuit protection ,over-current protectionCharacteristics :1.efficient,2,security ,3 .automation Size and weight :200mmx180mmx105mm ,1.3kg auto battery charger for car