iPhone 4 Power and battery


Power and battery
Built-in rechargeable lithium-ion battery
Charging via USB to computer system or power adapter

Talk time:
Up to 7 hours on 3G
Up to 14 hours on 2G (GSM model only)

Standby time: Up to 300 hours

Internet use:
Up to 6 hours on 3G
Up to 10 hours on Wi-Fi

Video playback: Up to 10 hours
Audio playback: Up to 40 hours

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