I just got a good deal on an old iBook G4 12", from someone that hates Macs, for $20. I think it was the last iBook, (M9846X/A) from the specs. 1.33Ghz built in wifi, and bluetooth 2 dual USB 2 512 built in RAM 40 G HDD I'm trying to find the right battery on ebay, but some have 10.8 volt, and others have 11.1 volt. They all say their battery will work. I know there isn't much of a difference, but I want the right battery. Will it hurt the charger to run with a dead battery? According to Istat Pro, the battery is at 100%, but it only charges up to 1%. The fan, never turns (0 rpm) even when the CPU top reaches 130 F. Most of the time it is between 110 and 120 degrees F. Do I need to replace the fan? The last question has to do with the airport extreme reception. I only get two bars on the iBook, although my Intel iMac (late 2006) gets 100%. I tried moving it all around, with no luck. Did Apple improve the airport between mid 2005 and late 2006?