ML seems to have really took a beating on my battery life. I would wager I am seeing 30 percent less use out of my laptop since upgrading, the percentages just keep dropping. On average I prob got 4-5 hours of straight use, no video before, now I am lucky if I get 3 solid hours. Info: MBP unibody2009 8 Gig Ram, ML upgrade, 2.26 Ghz 650 cycles Tests say the battery is doing just fine Brightness without charger is about 45 percent Energy Saver options are enabled and running/functioning Nothing heavy running in the background - only diff from SL -> ML is icloud Any ideas, or anyone seeing the same issue? Other than this one issue I am loving ML so far.