Apple G4 manual Battery wont charge

The battery won't charge

1.Remove any externally connected peripherals.

2.Try known-good power outlet.

3.Connect known-good PowerBook (1GHz/867MHz) power adapter (661-1798) and power cord or plug; make sure the DC plug is firmly inserted. The DC plug should light up, if not, replace DC-in board.

If the power adapter light is green, turn over the computer and press the battery button. The battery lights should glow green and stay on if the power adapter is operating correctly.

Important: The PowerBook (1GHz/867MHz) power adapter must be used with the PowerBook (1GHz/867MHz) computers. The adapters can be identified by 65W in the name and markings, and the metal securing-stud on the plug connector.

4.Try known-good battery.

5.Turn off the computer. With a non-metallic tool, reset the power manager by pressing the reset button (located under the keyboard in the recess just left of the power button). Wait five seconds before continuing. Press the power button to start the computer.

Warning: Resetting the power manager will permanently remove a RAM disk, if present, and all of its contents. You will also need to reset the date and time (using the Date & Time control panel).

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6.Replace DC-in board.

7.Replace logic board.

Battery Symptom Charts PowerBook G4 (1GHz/867MHz) Troubleshooting - 7