Actually, an iBook will run just fine with a 45-watt adapter. It wasn't until the 15 and 17-inch powerbooks that a machine required 65 watts!

the ibook models CAN use a 65watt power adapter, but can apparently run with a 45 watt adapter as well. You can find a 65 watt AC adapter here:

http://www.ifixit.com/Apple-Parts/PowerB...

thanks Tyler and Ben

Tyler, ding ding ding correct answer..

sorry Ben but tyler wins this round because my 14" ibook won't CHARGE with the 45w adapter

thank you both

I have a 14" iBook 1.42 Power PC running OS X 10.4.11, purchased new with full memory and 3 year Apple Care from MacMall in 2005. In October 2009 (about the time the new MacBooks came out), my laptop died because the battery (replaced brand new from Apple) would not charge. I then purchased a new Apple 65watt charger and still nothing.

I am wondering if the last update (in 2009) had something to do with the problem, apparently the firmware in the PMU was affected by updates that may have been for MacBook (from what I have read online), and outside of replacing the DC in, PMU or logic boards there is no way I know of to restore the firmware in any of the chips on these boards. The iBook was just booted up again, now in December 2011 with the help of an external charger from Newer Technologies, complete erase and install from original DVD and the all latest updates downloaded and installed. Techtool (AppleCare updated verson 3.1.3) reports nothing wrong, restarting from Apple install DVD and repairing disk from disk utility reports no repairs needed, but system profiler, opened from either the OS installed on disk or the install DVD reads that my 65watt Apple AC adapter it 26watts and the the AC adapter cannot charge:YES

I have read many forums about this, and they all say change the battery (done), change the charger (done), then progress to start replacing circuit boards starting with the smallest (DC in) and progressing until they land on the motherboard. Here's the thing, the laptop is working! it boots up and runs, it just won't charge from the AC adapter, only with an external adapter am I able to charge the battery and run until it has 0% remaining (about 3 hours). So is there anyway of absolutley determining what the problem is outside of guessing one increasingly costly board at a time?

Thanks,

Robert