I just purchased a used clamshell ibook...Its a blue G3 300mhz...It works great except the battery that is supposed to be perfect wont charge. A battery icon shows up on the top bar with a lightening bolt for about 10 minutes then turns into a battery with a red X through it. Also the charging light starts out red then turns green. Also 4 out of 5 times I start the ibook it says the date and time are wrong....I reset it and it does it again...I was a mac guy YEARS ago and I would have said the battery on the logic board was bad...but I cant find any listing for pram batteries for G3 ibooks..HELP!!