![]() If you have a MacBook, MacBook Pro, or MacBook Air running Mountain Lion 10.8 or 10.8.1, install the OS X 10.8.2 update right away through the Apple Menu > Software Update, and enjoy the immediate battery boost. The difference in battery performance between OS X 10.8.1 and 10.8.2 is night and day and should give users who suffered under prior versions at least an hour or two longer while on the go. ![]() Interestingly, the release notes of 10.8.2 make no mention of battery improvements, but if you have experienced any reduction in battery life with Mountain Lion then updating to the latest version will demonstrate very obvious increases. This was shown by the Battery Time Remaining app and proved accurate while running a clock to observe battery drain under standard usage conditions at 70% display brightness. An advanced Mac system monitor for your menu bar, with CPU, GPU, memory, network, disk usage, disk activity, temperatures, fans, battery info. The largest boost was found on a 2011 MacBook Air 11″ model, which jumped from 3.4 hours to 6 hours on a full charge.
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