... 1,Sealed Lead-acid battery charger 2,Switching Mode Power Supply,MCU control . 3,DC: 36V,20A. 4,CE Certification ... General Features for 36V/20A battery charger : 1,Ac input: 110Vac ... or we can make 110V/220V voltage selector for charger can use both 110Vac and 220Vac.2,Efficiency: 85 ... +60 . Please send me inquiry,any questions about 36V/20A battery charger.