iBook G4 AC Light alternates green and amber

I've got a G4 iBook that came in because the user thought the battery was dead. I tried the usual fixes, PMU, NVRAM, PRAM, different power adapter, etc. When I ran some tests (Coconut Battery) to see if the above worked, I found that the problem wasn't the battery (it still has 3888 mAh out of 4400).

The symptom: The AC light alternates between green and amber even though the battery is only at 18% charge. It will stay amber for about 45 seconds then switch to green, vice-versa. It has been plugged in now for 2 hours + and has gone from 16% to 18%, so it does seem to be charging...

I have adjusted the power saver so that the machine doesn't go to sleep or have the display dim as I thought sleep mode may have something to do with it.

Any ideas?

mad jew said:

Does it look like there could be anything caught in the little power socket on the iBook? Some lint or dust could be impeding the connection.

Click to expand...

Great idea! I took a look and blew out the socket with compressed air. No luck.

Thanks for the quick response!!