... use. This product with lithium polymer battery, so has the circle life higher than normal battery, light weight, high safety performance ... different, avoid to use the plug from the wrong problem.5, intelligent protection chip: charging, discharge, overload, short circuit and ... / 5.5 V3 the input current: 500 mAThe input voltage: 5.0 V dc4 the output voltage: 5.5 V dcOutput current: 500 mA5, circle life ...