One of my MacBook was purchased back in 2006. The battery was working fine until the beginning of this year. The capacity dropped like overnight. Suddenly, the fully charged battery could not last more than 40 minutes. At first, I thought I only need a replacement battery since the I had it for more than two years.
I ran across this page about battery problems for MacBook or MacBook Pro purchase between February 2006 and April 2007. If your battery has the following symptoms, you might get a free replacement.
- Battery is not recognized causing an â€œXâ€ 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.
I took my MacBook to Apple Store last week. They tested my battery on the spot and ruled my battery is eligible for a free replacement. They changed it with a brand new battery.
Note that not every MacBook or MacBook Pro battery is eligible. To recap theÂ three requirements:
- The MacBook and MacBook Pro must be purchased between 2006/2 and 2007/4.
- The battery has one or more ofÂ the aforementioned symptoms.
- The battery must be tested as BAD.
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