iPhone and iPod touch: Charging the battery
Summary
iPhone and iPod touch have an internal rechargeable battery. To charge the battery:
- Connect iPhone or iPod touch to a power outlet using the included cable and a USB power adapter to charge the battery.
(Note: iPhone 3G does not support FireWire and will not charge from any FireWire-based power source.)
- Or connect the device to your computer (not your keyboard) using the included cable to charge the battery and sync. Your computer must be turned on and not in sleep or standby mode. If the device is connected to a computer that's not turned on or is in sleep or standby mode, the battery may drain.
Products Affected
iPhone, iPod touch, iPhone 3G
An icon in the upper-right corner of the screen shows battery charging status. If you charge the battery while syncing or using iPhone or iPod touch, it might take longer to charge.
Note: If using a portable computer, make sure it is plugged into power and that the lid or display is open because if the lid is closed the computer may go into either standby, sleep, or hibernation mode and iPhone or iPod touch will not charge.
Important: If iPhone or iPod touch is very low on power, it may display one of the following images indicating that the device needs to charge for up to ten minutes before you can use it. If the device is extremely low on power, the display may be blank for up to two minutes before one of the low-battery images appears. If you don't see the white charging or plug icons, then disconnect the FireWire cable (or remove from the third-party dock or accessory) and connect iPhone 3G to a USB cable or dock.
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Rechargeable batteries have a limited number of charge cycles and may eventually need to be replaced. Battery life and number of charge cycles vary by use and settings. For more information, go to:
www.apple.com/batteries/iphone.html.
The battery indicator on iPhone and iPod touch shows approximately how much charge is left in the battery. For information on how long the battery is expected to last between charges, see the iPhone technical specifications or the iPod touch technical specifications.