About battery life in Apple portable devices
Extending battery life
To learn more about the batteries Apple uses in laptops, iPods, and iPhones, including tips and suggestions for improving battery life, visit the appropriate page for your device:
- Lithium-ion Batteries (used in all Apple portable devices)
- Apple Notebooks
- iPod Family
- iPhone
Problems with charging
If your device's battery is not charging, try the following:
-
Notebook computer:
- Reset your computer's power manager. For information on how to do
this with your specific model, search Apple Support.
- Make sure your AC adapter is properly inserted into your laptop.
- Connect your computer to its AC adapter, shut it down, and then
let it charge overnight. If it does not charge, it's likely you have a
hardware fault in your computer, battery, or adapter, and you should
have it repaired.
- Test your AC outlet. See if your battery will charge if you plug
it into a different outlet, or see if another electrical device will
work in your original outlet.
- Test your AC adapter. Try connecting a different AC adapter to
your computer and see if it recharges.
- If it's removable, test your battery. Try using a different
battery with your computer and see if it will recharge.
- In some of the early PowerBooks, the battery will not charge unless the computer is turned on. If you have an old PowerBook and your battery isn't charging while it's turned off, power it on, put it to sleep, and then see if it recharges.
If you go through all of these steps and your battery still won't charge, or you haven't narrowed down the source of the problem, you will probably need to have your computer repaired. However, it may be worth your time to consult Apple Support first. It contains entries on problems with specific computer models and versions of the operating system, including battery recharge issues.
- Reset your computer's power manager. For information on how to do
this with your specific model, search Apple Support.
-
iPod: See Apple Support's iPod's battery doesn't
charge.
-
iPhone or iPod touch: See one of the following
pages from Apple Support:
Last modified on November 03, 2009.







