rMBP battery life, what is acceptable 3.5 hrs?

This is a discussion on rMBP battery life, what is acceptable 3.5 hrs? within the MacBook Pro forums, part of the Macbook Forum category; Just wondering if I should be concerned, 3.5 avg is not so good IMO. All I have running is chrome, external display and all other ...

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  1. #1
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    rMBP battery life, what is acceptable 3.5 hrs?

    Just wondering if I should be concerned, 3.5 avg is not so good IMO. All I have running is chrome, external display and all other apps shut down. Shouldn't I get 8 hrs?
    2.3 base model

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  3. #2
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    Are you running Mountain Lion? There was an update to Mountain Lion (10.8.2) a month ago that was supposed to help with poor battery life on the rMBP....did you install this?
    'Deep Thought' - Mac Mini Late 2018- macOS Mojave (10.14.5)
    'Marvin' - Mac Mini Late 2014 - macOS Mojave (10.14.5)
    'Orac' - MacBook Pro 13" Mid 2012 - macOS Mojave (10.14.5)

    iPhone 6S - iOS 12.3.1
    iPad Pro 12.9" - iOS 12.3.1

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    Yes I did.

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    Well it's unfortunate that the update hasn't helped your battery life in that case. What do you use you rMBP for mainly? If you game a lot and use apps that make use of the discrete graphics chip, then your battery life will be poorer. I found an interesting article about this which might be of interest, as it reports on a app that allows you to control what graphics system the rMBP uses:

    http://arstechnica.com/apple/2012/07...gfxcardstatus/

    You can also turn off services you may not use such as Bluetooth etc to help with battery life.
    'Deep Thought' - Mac Mini Late 2018- macOS Mojave (10.14.5)
    'Marvin' - Mac Mini Late 2014 - macOS Mojave (10.14.5)
    'Orac' - MacBook Pro 13" Mid 2012 - macOS Mojave (10.14.5)

    iPhone 6S - iOS 12.3.1
    iPad Pro 12.9" - iOS 12.3.1

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