The PowerBook G4 Battery Updater improves the performance of batteries that may develop short run times. The update process will take about 15 minutes and must not be interrupted. To upgrade the firmware on your battery, read through the instructions below. When you're ready, click Update. The PowerBook G4 Battery Updater is installed in Applications/Utilities. During the update process your PowerBook G4 needs to be running, the power adapter must be plugged into a working power source and the battery should not be removed. Your battery will appear to have no charge and will not power your computer until the update process has been completed.
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