Poor battery life

Discussion in 'MacBook Pro' started by MWT1976, Apr 19, 2017.

  1. MWT1976 macrumors newbie

    MWT1976

    Joined:
    Apr 19, 2017
    #1
    Hello. I have a Macbook Pro Retina 15 inch from 2012. I´m only getting about two hours af battery life even if I´m only using Safari and listening to some music. The battery is discharging with 22-27 watts according to coconut. Isn´t that a lot? It has only been through 350 cycles and I´m not getting any service warning.
     

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  2. Stefan johansson macrumors 65816

    Stefan johansson

    Joined:
    Apr 13, 2017
    Location:
    Sweden
    #2
    Check up if there is something running in the background,look especially for little black dots under the icons in your dock,apps marked that way is running in the background.
     
  3. MWT1976 thread starter macrumors newbie

    MWT1976

    Joined:
    Apr 19, 2017
    #3
    Nothing running in the background and the only app with a black dot is Finder.
     
  4. Stefan johansson macrumors 65816

    Stefan johansson

    Joined:
    Apr 13, 2017
    Location:
    Sweden
    #4
    Ok,then look up exactly what you're using it for,as video,animations and some third party media players steal a lot of energy
     
  5. Sanpete macrumors 68020

    Joined:
    Nov 17, 2016
    Location:
    Utah
    #5
    You can use the Activity Monitor to check the energy usage Stefan is talking about, though it doesn't show everything. The power must be going somewhere.
     
  6. Mlrollin91 macrumors G5

    Mlrollin91

    Joined:
    Nov 20, 2008
    Location:
    Ventura County
    #6
    Your battery is definitely not in the best condition. I believe that laptop is rated for 1000 cycles before reaching 80%. That would definitely contribute to lower battery life (regardless of usage).
     
  7. lambertjohn macrumors 6502a

    Joined:
    Jun 17, 2012
    #7
    Your computer's five years old. Think it's time to get a new battery.
     
  8. Idarzoid macrumors 6502

    Joined:
    Mar 15, 2013
    #8
    Download gfxCardStatus and set it to use integrated graphics, if battery life improves, then something else was using the dGPU.

    Your machine is 5 years old though, it could be the battery but the load cycle doesn't seem bad.
     
  9. MWT1976 thread starter macrumors newbie

    MWT1976

    Joined:
    Apr 19, 2017
    #9
    The activity monitor doesn't really show any programs that are using much power other than Safari. Maybe it´s time for a battery change. I guess five years is a good run. :)
     

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  10. BeefCake 15 macrumors 65816

    BeefCake 15

    Joined:
    May 15, 2015
    Location:
    near Boston, MA
  11. MWT1976 thread starter macrumors newbie

    MWT1976

    Joined:
    Apr 19, 2017
    #11
    Yes we can. Here in Denmark it's going to cost about 200 dollars including installation.
     
  12. thesaint024 macrumors 65816

    thesaint024

    Joined:
    Nov 14, 2016
    Location:
    suspension waiting room
    #12
    I've found Safari and listening to music doesn't guaranty efficient battery use. Safari varies wildly depending on the site I'm on and if I have adblockers running. Also, music streaming from my NAS uses double the power of streaming from spotify. You can run little tests like seeing how each site uses different watts. You can squeeze more efficiency with some testing.
     
  13. MWT1976 thread starter macrumors newbie

    MWT1976

    Joined:
    Apr 19, 2017
    #13
    Today I tried to use Chrome instead of Safari and I have more than doubled my battery time!
     
  14. colinwil macrumors regular

    Joined:
    Nov 15, 2010
    Location:
    Reading, UK
    #14
    It's a good time to get your battery replaced anyway. Next year you MacBook will probably be 'obsolete' so you won't be able to get an official replacement battery. Instead you may have to go for a third-party one which may or may not work as well, and will affect the resale value.

    That happened last year to my 2009 17" mbp. I left it too late :(
     
  15. tubeexperience macrumors 68040

    Joined:
    Feb 17, 2016
    #15
    You can remove the old battery using a credit card and install a new battery yourself.

    much cheaper
     
  16. robvas macrumors 68030

    Joined:
    Mar 29, 2009
    Location:
    USA
    #16
    If you're getting better battery life in Chrome than Safari, you have some misconfigured or rogue plugins.
     

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