rMBP Battery Performance

Discussion in 'MacBook Pro' started by kwjohns, Jul 1, 2012.

  1. kwjohns macrumors 6502a


    Jul 4, 2007
    Anyone else getting subpar battery performance? Mine seems to only be getting at most 4 hours on a charge with my usage being just surfing the net with Chrome and Twitter being the only two things open.
  2. astrorider macrumors 6502

    Sep 25, 2008
    I'm seeing between 6:30 and 8:00 on a full charge at half brightness surfing the web.

    Check Activity Monitor and see what's using your CPU. Maybe you've got something that's causing your battery to drain more quickly.
  3. sahot macrumors newbie

    Jun 12, 2012
    Maybe get gfxcardstatus, something might be kicking on the video card.
  4. kwjohns thread starter macrumors 6502a


    Jul 4, 2007
    Just noticed this on Apple's site regarding battery life:

    Mine has been set to 100% so that is most likely it. I set it to 75% for a few minutes and my battery indicator jumped from ~2:30 remaining to ~3:30 remaining. 50% just appears too dim for me and loses a lot of the "poppiness" of the retina screen. :p
  5. Auzburner macrumors 65816


    Apr 11, 2008
    Syracuse, NY - USA
    Yes, brightness makes a tremendous difference. My battery life has been superb. Fortunately, I'm not big on brightness and that helps a ton.

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