PowerBook G3 Series battery not charging?

An Apple TIL file called PowerBook Discussion Board: Frequently Asked Questions (#28500) was updated last week. It contains the following question and answer (thanks, Vic Lewin):

Q. My PowerBook G3 Series battery does not seem to charge when the PowerBook is running. It will charge when the PowerBook is asleep. What's wrong?
A. There is a known issue where a small piece of shielding near the inside of the case touches the metal part of the AC adapter pot. This prevents the system from properly charging the battery. You should contact the Apple Assistance Center and arrange for this to be repaired. Some people have reported being able to move this shielding away with a piece of plastic, which may be a temporary measure, but doing this runs the risk of moving the shielding improperly and shorting out the board. You should have it checked out by Apple.