The powerbookmedic site may have parts, so should the iFixit site. The repair guides for Mac have information on specific models on how to do this. PowerBook G4 Aluminum 17-inch repair guide - iFixit: Someįor the 17-inch PowerBook models were available not long ago. You could see if OWC macsales has the replacement PRAM battery, they have a few. ![]() Lack of a PRAM/clock battery, or one that is dead, can affect startup in those where needed. ![]() Aįew replacement PRAM batteries are still available for those models which need them. To hold a charge would need to be replaced or perhaps disconnected from the logic board. Or PRAM battery which is separate from the main rechargable battery this, if no longer able ![]() Depending on the vintage and build model of "PowerBook" some models have a clock battery
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