PowerBook 500 Series: Battery Troubleshooting

The information presented here applies to any member of the PowerBook 500 series.

The battery may not charge due to a hardware, software, or Power Manager issue. Here are some troubleshooting steps to help you isolate the cause for the battery charging issue.

• Test the battery in the opposite battery bay. Verify the battery is fully inserted in the battery bay and remains seated.
• Run the Intelligent Battery Recondition Software. (Refer to Knowledge Base article 18489 "Intelligent Battery Recondition Software: Read Me" and Knowledge Base article 17108 "Intelligent Battery Recondition Software Troubleshooting")
• Reset the Power Manager (refer to Knowledge Base article 14449 "PowerBook: Resetting Power Manager")
• Test using a different battery. When fully charged, the battery will measure 8.5 to 11.6 volts.
• Test using a different power adapter. The power adapter will measure positive 16.6 volts on two different pins.

An Apple-authorized service provider can test the battery and power adapter. If the computer needs a replacement battery, power adapter, or logic board contact Apple support or your local Apple-authorized service provider.