external battery pack for iphone, portable battery pack for 3G iphone,portable battery pack

external battery pack for iphone, portable battery pack for 3G iphone,portable battery pack

Specifications:

weight:66.5g

Capacity:1800mah

Cell type: Li-polymer battery

Dimension:113*66*21mm

Output voltage:5V

Output current:700 mA max

Cycle times:500 times

Function&character

Power check and indication

Power switch

Protective and powerful

portable battery pack for iphone 3G