external battery for iPhone battery

external battery for iphone battery mobile phonebattery for iphone battery rechargeable battery case for iphone4 Specifications 1)rechargeable battery case for iPhone 4 2)1500mAh 3)stand-by-time:165hrs , 4)talk-time:5hrs,MP3-function:21hrs 5)CE,Rohs Battery Pack for iPhone4 OS-iP4BP-086 Pass:CE,RoHs Capacity:1500mAh More than 1X your battery! Talk Time: Up to additional 5 hours ( 3G Network) Up to additional 9 hours (2G Network) Internet Use: Up to additional 4.5 hours(3G) Up to additional 5.5 hours(2G) Standby Time: up to additional 22 hours Video Playback: up to additional 6 hours Specifications: 1. Weight: 58g 2.Capacity:1500mAh 3.Cell type: Li-Polymer battery 4.Dimension:126*61*16 (mm) 5.Output Voltage:5V 6.Output Current:500 mA max 7.Cycle life:500 times 8.Pass CE, ROHS Four LED lights indication: Press on the button to indicate real power in Battery Case LED light from left to righ 1st LED light shine power <25% 2nd LED light shine power 25--65% 3st LED light shine power 65-100% We also have external battery for iphone3Gs with logo of mophie as follow. When using Battery Case with your iPhone,you can sync your iPhone to itunes without removing Battery Case Safety Quality Control We choose grad "A" cells, Janpanese or Taiwanese made protection IC circuit and other highest quality raw materials. We conduct 16 tests on each stage of assembling process startion from every parts, work-in-progress, to final product If you interested in our products,please go to our website: w-w-w.szqingpeng.com to get more informations. We look forward to have long-term business with you Welcome to feel free to contact us!