Reload this Page 2014 15" rMBP - Battery Performance

Discussion in 'MacBook Pro' started by Liberty., Aug 24, 2014.

  1. Liberty. macrumors 6502

    Joined:
    Sep 13, 2008
    #1
    I'm not quite satisfied with my new rMBP battery. I often have situations like 84% charge and 4-5h remaining. And I don't really do much. Just Safari browsing with Flash blocked, some Word-processing, flux and Dropbox running. Brightness at 50%.

    Other people say their rMBP 15" devices are running like 8-10 hours.
     
  2. TechGod macrumors 68040

    TechGod

    Joined:
    Feb 25, 2014
    Location:
    New Zealand
    #2
    Probably the dGPU is deciding to crash your party.
     
  3. Liberty., Aug 24, 2014
    Last edited: Aug 24, 2014

    Liberty. thread starter macrumors 6502

    Joined:
    Sep 13, 2008
    #3
    I don't have a dGPU.
     
  4. Liberty., Aug 25, 2014
    Last edited: Aug 25, 2014

    Liberty. thread starter macrumors 6502

    Joined:
    Sep 13, 2008
    #4
    Might anyone please reply?

    Here's a CoconutBattery screenshot I made yesterday, my device is 13 days old.

    [​IMG]

    ---------
    From today:
    Current charge 70%, 3,5 hours remaining.
     
  5. bhayes444 macrumors 6502a

    Joined:
    Jul 13, 2013
    #5
    The only thing that's odd to me is that the battery has 633 mAh more capacity than it was designed for. Your battery problems could stem from a whole slew of other things. Spotlight indexing, backups, program syncing, or some rogue process could be the cause of the 'reduced' battery life. I will defer to those that are more knowledgeable in the ways of Mac OS X to be able to diagnose any of those issues; or to at least help you in diagnosis.
     
  6. gim macrumors 6502

    gim

    Joined:
    Jul 27, 2014
    #6
    The calculation of the remaining time on a charge is not accurate, thats it.
    There is no problem with your battery unless you really just get 3.5 hours in the end with 70% remaining under light load.

    My 15" rMBP is also just 2 weeks old. When I started it earlier, it was right at 70% (what a coincidence :D) and showed only 4.5 hours remaining for a while. The remaining time went up slowly after that, and now at 60% it's at 6:49 hours.

    So don't worry...
     

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