Mar 292009
A series of Apple Macbook Pro batteries suffer from defects where they can become “visibly deformed”. Apparently, the battery cells start to go bad, and expand. Initially, my laptop started shutting down at 40%. Then I noticed the metal exterior wasn’t flush with the bottom of the laptop, and the plastic casing started cracking. Then it really started to go haywire. I called Apple, and they sent me a replacement battery.
Deformed Battery
Deformed Battery Close-Up
New Battery vs. Deformed Battery
Deformed Battery vs. New Battery
I have exactly the same problem, bought my Macbook in November 2007, called the local store about it last month and they told me I had not warranty left and just had to buy a new one. The picture above shows the exact same problem as mine.
Regards