I have a PowerBook G4. The battery on the back of the loptop shows 3 green lights. But the G4 will not work. Only if it is pulged in to the AC. The G4 shows a X on the battery. Do I need a new battery? Info on G4 Mac OSX 10.3.9 1GHz Power pcG4 1 MB L3 cache 512 MB SDRAM
Ser Num QT31424CN4M...
