rMBP—4 hours battery? How to improve this?

Discussion in 'MacBook Pro' started by SAdProZ, Jan 17, 2015.

  1. SAdProZ macrumors 6502

    SAdProZ

    Joined:
    Mar 19, 2005
    Location:
    Washington, DC
    #1
    I've had this (refurb) mid 2014 15" rMBP (NVIDIA 750m) for a five days now. From unplugging, I'm seeing 4 hours battery time. I was expecting up to 8 hours as advertised (6 to be realistic). I was seeing 3 hours from a 5 year old MacBook Air. (Example: Unplugged an hour ago and it says 3:17 remaining. All I'm using is Safari, iTunes, and Airplaying the music to Apple TV). I already use Safari only and keep brightness 2/3rd the way. I doubt the 750m GPU is kicking in during web and music.

    Is this normal for you guys? What expectations should I have?

    What are some best practices to maximize battery? Plug-ins, software, settings?

    Thanks.
     
  2. PennCentralFan macrumors regular

    PennCentralFan

    Joined:
    Jan 6, 2009
    Location:
    Twin Cities
    #2
    I think it's the airplay that is doing your battery in. Can you just keep your computer plugged in? I mean unless you're somewhere where you can't have access to a plug just keep it plugged in.
     
  3. SAdProZ thread starter macrumors 6502

    SAdProZ

    Joined:
    Mar 19, 2005
    Location:
    Washington, DC
    #3
    I'll make Airplay a power-adaptor-only activity, per your suggestion. Thanks.
     
  4. yjchua95 macrumors 604

    Joined:
    Apr 23, 2011
    Location:
    GVA, KUL, MEL (current), ZQN
    #4
    AirPlay.

    Found your problem.

    I use gfxcardstatus to disable the 750M card in my machine when on battery power.
     
  5. Famousaudio macrumors newbie

    Joined:
    Jan 12, 2015
    Location:
    new york
    #5
    how do you make Airplay a power-adaptor-only activity?
     
  6. SAdProZ thread starter macrumors 6502

    SAdProZ

    Joined:
    Mar 19, 2005
    Location:
    Washington, DC
    #6
    Thanks, I'll install that now.

    True. I'm seeing close to 6h usage now that I'm not using Airplay.

    ----------

    By that I mean I will only use Airplay when using the power adaptor (plugged in). I'm borrowing the lingo from Control Panel > Energy Saver where you're either in Battery mode or Power Adaptor mode.
     

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