MacBook Pro 15 Battery Life

Discussion in 'MacBook Pro' started by creeman, Jul 27, 2010.

  1. creeman macrumors 6502

    Joined:
    Oct 15, 2007
    #1
    So, my laptop is at 90% power, and says I only have 3 hours and 50 minutes left. I have brightness all the way down, and Im using integrated graphics. Apple claims that I would get 8-9 hours on a single charge, which I am not getting. What gives?
     
  2. aeboi macrumors 65816

    aeboi

    Joined:
    Sep 20, 2009
    Location:
    Bay Area
    #2
    what do you have open? flash is a usual culprit
     
  3. creeman thread starter macrumors 6502

    Joined:
    Oct 15, 2007
    #3
    Currently I have Mail, Safari, and Im installing Adobe CS5. Also, I have an SSD.
     
  4. Corndog5595 macrumors 65816

    Joined:
    Jul 16, 2010
    #4
    running package files (installers) usually takes advantage of all available resources.
     
  5. aeboi macrumors 65816

    aeboi

    Joined:
    Sep 20, 2009
    Location:
    Bay Area
    #5
    look at the meter after installation, it should go back up, does for me
     
  6. spinnerlys Guest

    spinnerlys

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    Sep 7, 2008
    Location:
    forlod bygningen
    #6
  7. wordoflife macrumors 604

    wordoflife

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    Jul 6, 2009
  8. creeman thread starter macrumors 6502

    Joined:
    Oct 15, 2007
    #8
    Under Activity Monitor, it shows kernel_task as using around 15%, thats the highest.
     
  9. alicantino macrumors newbie

    alicantino

    Joined:
    Jul 27, 2010
    Location:
    Alicante, Spain
    #9
    your not alone, I have the same problem, I use Safari and Spotify most of the time and I never get more than 4 hours, I have calibrated battery and only has 53 cycles :(
     
  10. creeman thread starter macrumors 6502

    Joined:
    Oct 15, 2007
    #10
    I only have 7 cycles.... :(
     
  11. miamialley macrumors 68030

    miamialley

    Joined:
    Jul 28, 2008
    Location:
    Los Angeles, CA
  12. creeman thread starter macrumors 6502

    Joined:
    Oct 15, 2007
    #12
    98%. The installer finished, and now the laptop is at 37% battery, and it says it has 2:39 left with brightness at about half, so that seems about right I think.
     
  13. spinnerlys Guest

    spinnerlys

    Joined:
    Sep 7, 2008
    Location:
    forlod bygningen
    #13
    To the OP, look how the battery behaves after some cycles and if you get better results.
     

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