iPhone 4 Power and Battery Specs
![specs_battery20080609.jpg](/proxy.php?image=http%3A%2F%2Fimages.apple.com%2Fiphone%2Fimages%2Fspecs_battery20080609.jpg&hash=497e3d711e08c4e838840eef7ea312bb)
- Built-in rechargeable lithium-ion battery
- Charging via USB to computer system or power adapter
- Talk time:Up to 7 hours on 3GUp to 14 hours on 2G
- Standby time: Up to 300 hours
- Internet use:Up to 6 hours on 3GUp to 10 hours on Wi-Fi
- Video playback: Up to 10 hours
- Audio playback: Up to 40 hours