RECHARGEABLE BACKUP BATTERY for iPhone 3G

Feature
This Rechargeable Backup battery let you charge your iPhone 3G anytime, anywhere. Idea for long distance travle or business trip. This unit have Duo- charging fuction that could charge this unit & your iPhone 3G simultaneously.

Specification
. Battery type: Lithinm-ion battery
. Capacity: 800mAH
. Charger time: 2hour
. Safety charge control with special IC, don't occure battery explosive phenomena
. Input: 5V, 500mA
. Output: 5V, 500mA
. Size: 61 x 52 x 12(mm)
. Shipping Weight: 40 Grames