Believe it or not, yesterday's small update to OS X 10.8.1., Aka Mountain Lion, saves an hour of battery life, according to MacObserver.
MacObserver had the rich idea of comparing OS X 10.8.1 to the previous version of OS X, non-update. Result? MacObserver has observed a positive effect on the battery, which saves almost an hour of autonomy! So certainly, it is not yet perfect. As the site also points out, the previous version Mountain Lion still offered an hour more battery, but it is already a very nice improvement of the system and a big gain in autonomy for users of Mountain Lion … If you haven't already done so, update your system!
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