Is Apple’s Mountain Lion causing big battery drains? August 4, 2012 by admin Tweet A number of Macbook Pro and Macbook Air users are claiming that the upgrade to Apple’s Mountain Lion version of OS X is causing a massive amount of battery drain from their laptops. Read more… Neowin Related Posts:The Samsung One UI 5.1 update is causing faster…Save massive $500 on Apple's 16-inch M3 Max MacBook…Apple MacBook Air with M3 chip now available for just $849Apple releases iOS 15.4.1 update to fix battery…Apple refreshes its MacBook Pro lineup with new M4…