Battery Problems - IBM ThinkPad R40 series Service Manual

Solving computer problems
Problem: A message, "Unable to create overlay window," appears when you
try to start DVD playback.
or
You get poor or no playback while running video playback, DVD playback, or
game applications.
Solution: Do either of the following:
v If you are using 32-bit color mode, change the color depth to 16-bit mode.
v If you are using a desktop size of 1280×1024 or larger, reduce the desktop
size and the color depth.

Battery problems

Problem: The battery cannot be fully charged by the power-off method in the
standard charge time for your computer.
Solution: The battery might be over-discharged. Do the following:
1. Turn off the computer.
2. Make sure that the over-discharged battery is in the computer.
3. Connect the ac adapter to the computer and let it charge.
If the battery cannot be fully charged in 24 hours, use a new battery.
If the optional Quick Charger is available, use it to charge the over-discharged
battery.
Problem: Your computer shuts down before the battery status indicator shows
empty, -or- Your computer operates after the battery status indicator shows
empty.
Solution: Discharge and recharge the battery.
Problem: The operating time for a fully charged battery is short.
Solution: Discharge and recharge the battery. If your battery's operating time
is still short, use a new battery.
Problem: The computer does not operate with a fully charged battery.
Solution: The surge protector in the battery might be active. Turn off the
computer for one minute to reset the protector; then turn on the computer
again.
Problem: The battery does not charge.
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ThinkPad R40 Series Service and Troubleshooting Guide