... :CE,ISO9001,CCC Dust&water proof case Lithium battery charger for EV,E-Bike,E-Scooter,E-motorcycle Technical specificationInput Voltage ... load) : > 85%Ripple: <1%*V0Protection:1.Short circuit protection 2.Reverse polarity connect Protction 3.Over current protection4.Over Voltage ... safety: EN60335, IEC 60335EMC Standard: EN 55014-1, EN55014-2 Remark:Can produce as per customer's request,any questions ...