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Apple has recently discovered that some batteries used in its MacBook and MacBook Pro notebooks may have battery performance issues. Apple is offering a software update that is designed to improve battery performance.

The battery update is available immediately via Software Update or downloadable here.

Note: The factors causing the performance issues do not present a safety risk. You may continue to use your current battery.

This battery update should be run on all MacBook and MacBook Pro computers and extra batteries that were purchased between February 2006 and April 2007.

If, after you have installed the battery update, your battery has any of the symptoms listed below, please make a reservation to bring your computer with its battery to your local Apple Retail Store, or contact an Apple Authorized Service Provider (AASP), or call your local Apple Support Contact Center. If Apple or an AASP determines that your battery is eligible for replacement, you will receive a new battery, free of charge, even if your MacBook or MacBook Pro is out of warranty.

For MacBook and MacBook Pro systems with Intel Core Duo processors, this program extends repair coverage on the battery for up to two years from the date of purchase of the computer.


Identifying an affected battery

Affected batteries will have one or more of the following symptoms:

Battery is not recognized causing an “X” to appear in the battery icon in the Finder menu bar.
Battery will not charge when computer is plugged into AC power.
Battery exhibits low charge capacity/runtime when using a fully charged battery with a battery cycle count (as shown in System Profiler) of less than 300.
Battery pack is visibly deformed.
Note: If your MacBook or MacBook Pro battery does not have any of the symptoms noted above, your battery does not need to be replaced.


Next Steps

To participate in this worldwide program, your MacBook or MacBook Pro battery must show the symptoms noted above. If it does, please make a reservation to bring your computer and battery to your local Apple Retail Store, or contact an Apple Authorized Service Provider (AASP), or call your local Apple Support Contact Center. The U.S. support number is 1-800-275-2273. If you are located outside the U.S., please see Apple's international contact list for your local Apple Technical Support phone number. An Apple technical support representative or an Apple Authorized Service Provider (AASP) will determine if the battery is eligible for replacement, free of charge. Customers are responsible for transportation costs to eligible AASPs and retail stores.

If a replacement battery is sent to you via airmail, it is important that you return the older battery to Apple so that it can be properly recycled.

This program extends repair coverage on the battery for up to two years from the date of purchase of the computer for Intel Core Duo-based MacBook and MacBook Pro computers. Apple will continue to evaluate the battery update program and will provide further extensions as needed.    Apple also reserves the right to modify the program if other solutions that address the battery performance issues become available.