Just how much of a drain is Bluetooth?

Discussion in 'MacBook Air' started by thelookingglass, Jul 1, 2013.

  1. macrumors 68000

    Joined:
    Apr 27, 2005
    #1
    Maybe the expert electrical engineers (or anyone else qualified to answer the question) can help on this one:

    I plug my 2013 MBA into an external monitor at home, complete with Bluetooth keyboard and mouse. It's a little bit of a pain shutting off Bluetooth everytime I take my MBA on the road, just to conserve battery. How much less battery life should I be expecting if I just leave Bluetooth on the whole time? Would it be a significant hit?
     
  2. macrumors 6502a

    Joined:
    Nov 4, 2012
    #2
    ...Why exactly is it a pain to turn off bluetooth, it takes like a split second to do it from the menu bar
     
  3. thread starter macrumors 68000

    Joined:
    Apr 27, 2005
    #3
    Thanks for your input, but that doesn't answer the question does it? :rolleyes:
     
  4. macrumors regular

    Joined:
    Apr 5, 2013
    Location:
    ar the moment on the Death Star
    #4
  5. macrumors 68030

    APlotdevice

    Joined:
    Sep 3, 2011
    #5
    If the Bluetooth on a MacBook is optimized like an iPad, the drain should be fairly negligible. (Maybe a few minutes' difference)

    Also, FWIW, I have heard there are scripts and applets that can automatically turn off Bluetooth when you go to battery power.
     
  6. thread starter macrumors 68000

    Joined:
    Apr 27, 2005
    #6
    Thanks for the responses. Very helpful. The only two devices I have connected are a keyboard and mouse. I'd assume if there's no input from either of these devices, that the power draw would be extremely small.
     
  7. macrumors P6

    Weaselboy

    Joined:
    Jan 23, 2005
    #7
    I have the same machine and use it just like you do at home. I have tinkered around with BT on vs. off and never noticed any difference at all in battery life either way. I just leave BT on all the time now rather than mess with it.
     
  8. macrumors newbie

    Joined:
    Oct 16, 2012
    #8
    Does anyone else experience wifi issues while Bluetooth is activated?
     

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