Awful OSX battery life after Boot Camp installation on rMBP

Discussion in 'MacBook Pro' started by BMWNEW, Dec 4, 2012.

  1. BMWNEW macrumors member

    Sep 27, 2010
    Moscow, Russia
    Good morning,

    I have tried many things, but nothing helps. So actually last week my 15' Retina MBP used to work for 8-10 hours unplugged, but after installation of Windows 8 in Boot Camp, OS X system's battery management became 3 times worse. I now barely get 3 hours of battery life even though I am just typing in Word in OS X.

    Tried calibrating the battery, tried checking the activity monitor processes: nothing actually helps. I got no idea what to do :mad:

    Seek for help, folks!
  2. GGJstudios macrumors Westmere


    May 16, 2008
    There are many factors that impact your battery life. See the BATTERY LIFE FROM A CHARGE section of the following link for details, including tips on how to maximize your battery life.

    The link below should answer most, if not all, of your battery/charging questions. If you haven't already done so, I highly recommend you take the time to read it.
    The built-in batteries in the newer Mac unibody notebooks come pre-calibrated and do not require regular calibration like the removable batteries in older Apple notebooks.

    Follow every step of the following instructions precisely. Do not skip any steps.
    1. Launch Activity Monitor
    2. Change "My Processes" at the top to "All Processes"
    3. Click on the "% CPU" column heading once or twice, so the arrow points downward (highest values on top).
      (If that column isn't visible, right-click on the column headings and check it, NOT "CPU Time")
    4. Click on the System Memory tab at the bottom.
    5. Take a screen shot of the entire Activity Monitor window, then scroll down to see the rest of the list, take another screen shot
    6. Post your screenshots.
  3. BB.King macrumors regular

    Jun 29, 2012
    London UK
    I think your battery is fine. The machine in Bootcamp uses the more power hungry Nvidia 650M all the time, so you are looking at half of running time on battery compared to in OSX which runs on integrated more power efficient HD4000 when not taxed.
  4. makaveli559m macrumors 6502

    Apr 30, 2012
    What really sucks is that Apple still not releasing Windows optimized drivers.

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