Improving apple notebook by calibrating your battery

The battery has an internal microprocessor that provides an estimate of the amount of energy in the battery as it charges and discharges. The a1175 battery needs to be recalibrated from time to time to keep the onscreen battery time and percent display accurate and to keep the battery operating at maximum?efficiency. Products Affected iBooks and PowerBook G4s other than the PowerBook G4 battery (15-inch Double-Layer SD) Plug the power adapter in and fully charge your computer's a1185 A1022 battery until the battery indicator lights turn off and the adapter plug light goes from amber to green, which indicates that the battery is fully charged. PowerBook G4 (15-inch Double-Layer SD), MacBook (all models), Macbook Pro Series battery (all models), MacBook Pro (17-inch) (all models) and?MacBook Air The battery calibration for the PowerBook G4 (15-inch Double-Layer SD) and any model of MacBook or MacBook Pro has been updated because of a new A1079 battery released with this computer. With these computers, follow these steps to calibrate your battery: Plug in the power adapter and fully charge your PowerBook's battery until the light ring or LED on the power adapter plug changes to green and the onscreen meter in the menu bar indicates that the battery is fully charged. Disconnect the power adapter while the computer still on and start running the computer off battery power. The battery needs to be recalibrated from time to time to keep the onscreen battery time and percent display accurate and to keep the battery operating at maximum?efficiency. Products Affected iBook, MacBook Pro, MacBook, PowerBook, MacBook Air iBooks and PowerBook G4s other than the PowerBook G4 (15-inch Double-Layer SD) Plug the power adapter in and fully charge your computer's apple laptop batteries until the battery indicator lights turn off and the adapter plug light goes from amber to green, which indicates that the battery is fully charged. PowerBook G4 (15-inch Double-Layer SD), MacBook (all models), MacBook Pro (all models), MacBook Pro (17-inch) (all models) and?MacBook Air The apple laptop battery calibration for the PowerBook G4 (15-inch Double-Layer SD) and any model of MacBook or MacBook Pro has been updated because of a new battery released with this computer. With these computers, follow these steps to calibrate your battery: Plug in the power adapter and fully charge your PowerBook's battery until the light ring or LED on the power adapter plug changes to green and the onscreen meter in the menu bar indicates that the battery is fully charged. Disconnect the power adapter while the computer still on and start running the computer off battery power.