... , PMP, PDA, NDS, GPSPHONE, PSP, IPOD, iPhone and other digital products add power, carry convenient.1, ... charging current: 400mA3, the battery capacity: 800 ~ 2000mAh4, the output voltage: 5.5V 5, the output current: 500mA ( maximum ) ... interface;2: DC interface, an output interface.3, material: aluminum. 4, the charging LED lamp color display ... digital mobile equipment external battery for mobile phone