1,Sealed Lead-acid battery charger 2,Switching Mode Power Supply,MCU ... 20A. 4,CE Certification General Features for 48V/20A battery charger : 1,Ac input: 110Vac or 220Vac as ... voltage as per customers different kinds of lead-acid battery.10,Operating temperature:0-50 ,Storage temperature:-10 - ... send me inquiry,any questions about 48V/20A battery charger. 48Volt 20Amp SLA Battery Charger (YMC48-20)