Batteries are pretty easy to replace in newer (last few years) macs. ifixit.com has really good guides for digging around inside your mac. This (http://www.if

Batteries are pretty easy to replace in newer (last few years) macs. ifixit.com has really good guides for digging around inside your mac. This (http://www.ifixit.com/Guide/Installing-MacBook-Pro-13-Inch-Unibody-Mid-2009-Battery/1332/ http://www.ifixit.com/Guide/Installing-MacBook-Pro-13-Inch-U...) guide is for my mac from 2009, as an example.