MAJOR WARNING: this will probably NOT WORK. Sure, you can replace the battery easily enough. But there are MANY reports of Mac OS X not recognizing the new battery, no matter what you do. In my case I've had to put the old, swollen battery back. When I try to use the new one, it installs and connects perfectly, but Mac OS X spends all its time trying to find the battery. The laptop is practically useless because the system resources are consumed with trying to find the battery that it cannot see. Word to the wise—think 3 times before you try this.
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