1,12v 5a universal external laptop battery charger 2,CE,ROHS,SAA,CB,ect ... ,2 years warranty at least 4,MOQ:100pcs 12v 5a universal external laptop battery chargerCertification CCC,UL,SAA,CSA,BEAB,PSE ... between AC plug and DC plug and case. 12v 5a universal external laptop battery charger