Battery For Iphone 4
BATTERY Non-removable Li-Po 1420 mAh battery
Stand-by Up to 300 h (2G) / Up to 300 h (3G)
Talk time Up to 14 h (2G) / Up to 7 h (3G)
Music play Up to 40 h
The Apple iPhone 4 is powered by a 1420 mAh Li-Po battery, which is quoted at up to 300 hours of stand-by, up to 14 hours of talk-time and up to 40 hours of non-stop music playback.