1,Sealed Lead-acid battery charger 2,Switching Mode Power Supply,MCU control . 3,DC: 12V,25A. 4,CE Certification General Features for 12V/25A battery charger : 1,Ac ... different kinds of lead-acid battery.10,Operating temperature:0-50 ,Storage temperature:-10 - +60 . Please send me inquiry,any questions about 12V/25A battery charger.