Features :
Double the battery life for iPhone 4
Battery level indicator and charging status indicator
"Made for iPhone" certified by Apple Inc.
Sync with iTunes
On / off switch for convenient charging
Stand by time: 300 hrs
Talk time: 7 hrs (3G) / 14 hrs (2G)
Internet use: 6 hrs (on 3G) / 10 hrs on Wi-fi
Audio play: 40 hrs
Video play: 10 hrs
Specifications :
Output Voltage: 5V
Output Current: 500mA
Capacity: 2200mAh
Cell type: lithium-polymer battery
Cycle life: 500times
Operating Temperature: -10 - +45
DC Charging Time: 4 - 6hours
Dimension: 127 x 61.6 x 15.6mm
Weight: 115g
Models :
iPhone 4