... brand mobile phone and accessories .1 Factory price 2. Deliver goods on time our portable power features: ... , carry convenient.1, working voltage: 5.5V ( maximum ) 2, the charging current: 400mA3, the battery capacity: 800 ~ 2000mAh4 ... ( indoor power: 5V / 500mA )Standard interface:1, the input interface: MINIUSB interface;2: DC interface, an output interface.3, material: aluminum. 4, the charging ...