What to do if your iBook won‘t run on battery

Your iBook should work when it's plugged in to the power adapter and on a charged battery. If it only works when it's plugged in, try the tips below. These tips are good for iBook through iBook (FireWire) models.
If the battery doesn't appear in the Mac OS 9 control strip or has a red X through it, install the Battery Update 2.0. It's available from Apple Downloads.

  1. Make sure the battery is fully charged. Use the proper power adapter for your iBook computer. If it is not charging, try a different power outlet. The power connector on the iBook glows amber if the battery is accepting a charge. It glows green once the battery is fully charged. If the power connector does not glow, there may be an issue with the AC adapter or power outlet.

  2. Remove the battery and reinsert it making a good, solid contact with the iBook.

  3. Reset the Power Manager.

  4. Try a different battery.

  5. Replace the battery.

Published Date: Feb 20, 2012