1.universal USB charger,USB Charger, charger 2.suitable for 3.6-3.7v lithium battery 3.Input :DC5 V a type of USB interfa Features:0.universal USB charger,USB Charger, charger1.suitable for 3.6-3.7v lithium battery2.Input :DC5 V a type of USB interface3.Input Voltage:DC5.0V+/-0.25V  ,Output Voltage:DC4.2+/-0.05V4.Output current:Max500mA5.Working temperature: 0-45 C  Humidity:20-60%6.Max dimensions of the contact poles is 17MM7.anode and cathode can be automatic switched

universal USB charger