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PowerBook G4 PRAM battery - DIY replacement?

Posted by: RickNel on 2013-04-16 01:50:50 I accidentally acquired a Powerbook G4 today and found what many threads here have led to - if the PRAM battery is flat, the main battery will not charge either, and the thing appears to be dead. Simple solution is to leave on charger for an hour or so with the main battery out of the case - that gives the PRAM battery a quick charge, enough to get the PMU moving. Then the main battery will charge. Still, I want to replace the dodgy PRAM battery, because it is still not holding settings between power-downs. It seems to be a set of four button batteries. Haven't checked whether they are in series or parallel. Does anyone know what they are? Any reason not to just put four plain rechargeable buttons together, rather than paying $20 + postage for a replacement? Rick

Posted by: beachycove on 2013-04-19 15:15:31

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