... convenient.1, working voltage: 5.5V ( maximum ) 2, the charging current: 400mA3, the battery capacity: 800 ~ 2000mAh4, the output voltage ... .5V 5, the output current: 500mA ( maximum ) 6, the charging time : 4 ~ 6hrs ( indoor power: 5V / 500mA )Standard interface:1, ... interface, an output interface.3, material: aluminum. 4, the charging LED lamp color display: charging red, full of light. 5, power of ...