2015 15" MBP Battery

Discussion in 'MacBook Pro' started by meyer1131, Aug 21, 2015.

  1. meyer1131 macrumors regular

    Mar 6, 2008
    I clicked the battery % on the top of my new (bought April 1) 15" MBP Base model and it said I only had 3 hours 57 minutes left but was at 98%. I thought that these MacBooks get at least 6-9 hours of battery when fully charged. Is this normal for others?

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  2. T5BRICK macrumors G3


    Aug 3, 2006
    Battery life is 100% dependent on what you are doing with the computer.
  3. Mcmeowmers macrumors 6502

    Jun 1, 2015
    Flash consumes the battery and a very fast rate. I suggest installing "ClickToFlash" or a flash blocker.
  4. ThisOldMacHead macrumors member

    Dec 17, 2007
    South Jersey
    Apple has very tight parameters by which they calculate battery life... Right down to screen brightness. So it all depends how you use your machine... FWIW, flash player is an enormous battery hog.
  5. JackieInCo Suspended

    Jul 18, 2013
    Turn down brightness to around 50% or less and make sure the keyboard lights are off. I get about 6 hrs and consider that good using those settings just surfing the net.
  6. Fthree macrumors 6502a

    Mar 14, 2014
    The battery on my 15 seems like it drains quicker than supposed to.
  7. rapicell macrumors regular

    Mar 20, 2013
    They can get UP TO 6-9 hours or whatever. Apple never said they will always get that, but they have the potential to. If you're doing light work, you'll get a good bit of life, if it's more intense, say good bye to that battery quickly.
  8. maerz001 macrumors 6502a


    Nov 2, 2010
    Like car manufacturers give u miles per gallon, it depends on the driver skills how far u get
  9. Mr.C macrumors 601

    Apr 3, 2011
    London, UK.
    What Apple states is an estimate. What you actually get could be very different. It all depends on real world usage and in particular how you use your laptop. Battery life will vary from person to person as everyone uses their laptop differently.
  10. Taz Mangus macrumors 68040

    Taz Mangus

    Mar 10, 2011
    Depends on what you are doing. For example, if you turn the brightness, on the screen and/or keyboard, up higher will drain the battery quicker. Some applications, like Chrome or Flash player, can also drain the battery faster. Some graphics intensive applications can also contribute to battery draining faster. If you are running OS X 10.10, clicking on the battery icon in the menubar can tell you if an application is causing excessive battery drain.
  11. mafaky macrumors regular


    Jun 12, 2014
    Istanbul, Turkey
    In a YouTube Video Review, I saw the reviewer saying "you can charge this rMB in 5 hrs. when it's inoperative" and using a standard external battery bank. These battery banks normally have a 5.0Vdc USB output (at different output current ratings...). But the rMB is a 14.0Vdc/2.0A product. How can you charge a 14.5Vdc (nominal rating) product only with a 5.0Vdc source?
  12. Mcmeowmers macrumors 6502

    Jun 1, 2015

    If the device isn't in use then it should charge fine but slow. When it is on it will drain at almost the same rate it is charging resulting in a very slow charge or drain. Depending on how large of a difference between the charge and drain rates.

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