After OS X Mountain Lion reportedly killed battery life for some notebook users, help is in sight. According to the Mac Observer, the upgrade to OS X Mountain Lion dropped battery life by up to 33 percent for certain users, and while OS X 10.8.1 helped a bit, users still had shorter battery life over 10.7.4.

OS X 10.8.2, on the other hand, has finally brought OS X Mountain Lion up to snuff with OS X Lion’s and even OS X Snow Leopard’s battery life. On the Mac Observer’s test machine (2011 MacBook Pro, 2.0GHz i7), OS X 10.8.2 gave them around 380 minutes of power while the original build of OS X Mountain Lion only gave them 260. If you’d like to view more detailed comparisons, check out the Mac Observer‘s graph, which we’ve posted below.

OS X 10.8.2 Gives Notebook Users Better Battery Life

This gets me pretty excited for OS X 10.8.2 as my 2010 MacBook Air took a pretty big battery life hit when OS X Mountain Lion was released. And to be completely honest, OS X 10.8.1 didn’t help my Mac’s battery life at all. Let’s hope 10.8.2 fixes this issue once and for all. Since OS X 10.8.2 is pretty deep into the testing phase, we should see it hit System Update sooner rather than later.

Source: The Mac Observer