Input: AC 100-240V Application: 42V 4A Battery Charger FOR 36V 10S Lithium Batteries Output: 42V 4A Charger Type: CC and CV Battery Charger Case Material: ABS + PC Cooling Way: Built-in Cooling Fan Size: 160mm x 85mm x 56mm Certificate: CE FCC ROHS Operating Temperature: -20 to 60 Degree Operating Humidity: 20 to 90%RH Storage Temperature: -40 fo +80 Degree Protection Over current protection Over voltage protection Short Circuit Protection Reverse Connection Protection Usage Introdction Dual color LED indicator:(Charging:Red; Fully charged or no load:Green) Light weight and compact High efficiency and low power consumption Package 1 x 1pc 42V 4A Lithum Battery Charger SMALL SPARK WHEN PLUGGING IN IS NORMAL