Chosen Solution
Have a iBook G3 900mhz 14 inch. Was working fine, but the battery gave out. I replaced the battery with a cheapie from ebay. The battery would only charge for a few minutes, then my charger would glow to green, even if the battery was not fully charged. I reset my PMU and it would charge again for a few minutes, but then it would stop charging. If I keep re-setting the PMU, I can fully charge the battery and the iBook runs fine on the battery. I thought it could be the DC in, so I replaced it, but same problem. Is this likely a problem with the battery of with the logic board. I do not want to spend more on another battery if that is not the problem.
Download and run Coconut battery to see what you got on eBay and the condition of it. http://www.coconut-flavour.com/coconutba…
You can try calibrating the battery by working on battery power (not plugged in) until it’s copletely dead. Than recharge. Repeat the cycle a couple of times. This sometimes help, especially with third party batteries.
