I got a new battery for my iBook, that would not charge or turn on when plugged into the AC adapter. With the working battery, I installed a fresh copy of OS 10.2 onto the new hard drive,

Unfortunately, the iBook does not turn on if it is plugged into the AC adapter. When it is on from the battery's power, plugging in the AC adapter immediately shuts it off.

I thought that resetting the PMU would help, but my model doesn't have a physical reset button, so I press the key combination. Pressing this combination results in the iBook powering down, but it would power down anways if I had just pressed the power button. I can't tell if I'm successfully resetting the PMU. After what should be a PMU reset, the iBook still does not power on when plugged into the adapter, and will still shut off once I do plug in the AC adapter

Any advice is greatly appreciated.