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I've never been concerned with such a small measurement error. I'd be interested in seeing more data. If you make a month's measurements at least daily - please post and share. Perhaps something is concerning but the small fluctuation you report isn't concerning to me.


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What does usage on the iPhone say? Have you contacted Apple Support to check the power diagnostics at https://www.apple.com/support/iphone/repair/ Once you have some measurements and data, you can change which apps get notifications, which apps are allowed to run in the background and which apps do background refresh. You can use the Apple Watch app to ...


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Avast free Mac Security does somewhat drain battery life. However, despite the disadvantages, I strongly suggest that you use it. I own a Macbook Pro Retina 2014 running OS X Yosemite and Avast has blocked 5+ web threats. I also use Avast to scan files from unknown sources and to scan files shuttled from USB sticks. From my experience, Avast lowers the ...


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You can find these options in System Preferences > Energy Saver. Drag the "Computer Sleep:" slider to the left. Note that for newer Apple portables, Yosemite combines the sleep and display sleep option: http://forums.macrumors.com/threads/2013-mba-no-computer-sleep-setting-wtf-heres-why.1598329/


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Yes with time you can do like Ender says, or simply do it directly by clicking on the Apple on the top-left corner and click Suspend Activity (Go in sleeping mode)


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Lithium cells degrade over time so getting a new cell is always better three years shelf life or worse. Worse, if the part falls into deep discharge, it will be ruined. I have no issue with old batteries but I charge them up to 50% every 6 months to avoid deep discharge. When you can get a cell that you know was put into long term storage properly, then buy ...



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