48VLead-acid Battery Charger 1.Reverse connection protection 2.Reverse discharge protection 3.Output short circuit protection Description:1,Input Voltage: AC 220V/110V 50-60HZ 2,Applicabel Battery Set: 48V3,Ambient Temperature: -10°C ~ + 40°C 4,Ambient Humidity: ≤95% 5,Charging Style: intelligent pulse with constant current and voltage 6,Charging Time: 7hours 7,With Red/Green Charging Indication ...