Apple Battery indicator light function

26 November 2009 By Jack 0 In battery, battery news

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Learn about the location and new functions of the battery indicator lights on MacBook (13-inch, Aluminum, Late 2008) and MacBook Pro (Late 2008) and later computers. These computers use a new, more convenient location for the battery indicator lights, when compared with previous models.

Products Affected

MacBook Pro battery (17-inch, Mid 2009), MacBook Pro (13-inch, Mid 2009), MacBook Pro (15-inch, Mid 2009), MacBook Pro (15-inch, 2.53GHz, Mid 2009), MacBook Pro (17-inch, Early 2009), MacBook (13-inch, Aluminum, Late 2008), MacBook Pro (15-inch, Late 2008)

The battery indicator lights are located along the left side of the computer. This allows for quick and easy verification of the Apple A1060 Apple A1079 battery’s charge status while the computer remains solidly in-place.

When you press the battery indicator light button, the corresponding flashes (or pattern of flashes) presents either the current charge status or a diagnostic status.

The chart below describes the behaviors you may see when you press the Apple A1045 battery indicator light button.

    Battery indicator light behavior Description and instructions
  • The first LED flashes for 5 seconds. The battery has not yet been charged to what’s required for a single indicator light. Ensure the MagSafe adapter is properly connected.
  • LEDs representing the current charge flash 5 times, then fade. The battery is charging, but does not have a full charge.
  • All LEDs flash 5 times. The Apple A1078 battery needs to be replaced. Please schedule a service appointment with either an Apple Retail Store or an Apple Authorized Service Provider.
  • LEDs flash from left to right and back again 5 times. The battery is not installed, or is not recognized. Verify that the battery is installed correctly.

    • Note: Once the MagSafe power adapter is first connected to the computer, the MagSafe’s LED glows. An amber light indicates the iBook G4 Battery is charging. A green light indicates the battery is fully charged, or not installed correctly in the computer.

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