I'm having an issue the my G4 Battery taking a charge. I have bought replacement batteries (2), replaced the charger (2) and ordered a Battery Connector from Ifixit and replaced. The computer will power-up if connected to any for the chargers and detects the charger but I get a battery "not charging". I've spent quite a bit of time on goggle trying to figure it out and ran across your PRAM video, but my machine is powering up. So my question is this fixable and worth fixing?