i7 MBP 15 battery life

Discussion in 'MacBook Pro' started by RiCEADDiCTBOY, Dec 18, 2010.

  1. RiCEADDiCTBOY macrumors 6502a

    RiCEADDiCTBOY

    Joined:
    Dec 26, 2007
    #1
    I have become incredibly confused and frustrated as to why my MBP battery life has gone down the tube. I've had it around release date with minimal cycles. I've tried:
    1. brightness reduction
    2. turning off wifi/bluetooth
    3. items that auto log when computer is turned on where removed (such as adobe updater)

    Please advise before I go to the Apple Store.
     
  2. alust2013 macrumors 601

    alust2013

    Joined:
    Feb 6, 2010
    Location:
    On the fence
    #2
    Two questions, what do you do with the computer, and how long does the battery last?
     
  3. RiCEADDiCTBOY thread starter macrumors 6502a

    RiCEADDiCTBOY

    Joined:
    Dec 26, 2007
    #3
    When it's on battery life, listen to music and typing documents. When it is plugged in I work on graphic designing and photography.

    Battery life ranges from 4-3 hours... it starts off saying 5...but its always around 4-3. It's ridiculous.
     
  4. mark28 macrumors 68000

    Joined:
    Jan 29, 2010
    #4
    Set up your MBP that it will force to Intel GPU when it's on battery. You'll never get 8 hours on the nvidia card.
     
  5. theLimit macrumors 6502a

    theLimit

    Joined:
    Jan 30, 2007
    Location:
    up tha holler, acrost tha crick
  6. RiCEADDiCTBOY thread starter macrumors 6502a

    RiCEADDiCTBOY

    Joined:
    Dec 26, 2007
    #6
    yes, i use a program to force to use intel gpu when on battery.
     
  7. RiCEADDiCTBOY thread starter macrumors 6502a

    RiCEADDiCTBOY

    Joined:
    Dec 26, 2007
    #7
  8. RiCEADDiCTBOY thread starter macrumors 6502a

    RiCEADDiCTBOY

    Joined:
    Dec 26, 2007
    #8
    Answer this - what are users honestly averaging with their 15 MBP with i7...
     
  9. iphone3048 macrumors member

    Joined:
    Aug 13, 2009
    #9
    What program is that, I would like to try it.
    Thanks.
     
  10. tekksan macrumors regular

    Joined:
    Mar 27, 2009
    #10
  11. iphone3048 macrumors member

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    Aug 13, 2009
  12. BoxsterRS macrumors member

    Joined:
    Jul 13, 2010
    #12
    I have a i5 2.4ghz Macbook Pro Mid 2010. First off, I had a 7K rpm drive battery performance was always around 4 hours and below. I swapped my drive for a 5k rpm drive and battery improved to 6-7 hours depending on usage. I bought a 8-9 hour Macbook Pro not 6-7. So I un-installed Flash player! Not because I hate it, but, because I had heard some rumors it drained the battery a lot. After the uninstall, my battery lasts from 8-9 hours as claimed, sometimes 7 but I do what ever i want with my laptop (videos, music, and anything system intense drains the battery). Overall I have noticed a marked improvement on my battery life. I also use the gfx graphics card software. Also, Firefox and Chrome always use Nvidia, Safari most of the time uses intel's.
     
  13. ridingforlife macrumors member

    Joined:
    Oct 16, 2008
    Location:
    BC, Canada
    #13
    Is it better to force your MBP to use the Intel or NVIDIA card on a daily basis? I know Chrome uses NVIDIA and that's my main browser (though I'm forcing Intel right now to test and it's working...)
     
  14. NickZac macrumors 68000

    NickZac

    Joined:
    Dec 11, 2010
    #14
    I don't know too much about your specific model but the screen and keys on all of our MBPs are LED backlit and because of this, they have very, very, very little impact on energy consumption (literally a small fraction compared to previous laptop screens).
     
  15. thegreatdivorce macrumors regular

    Joined:
    Sep 23, 2010
    Location:
    Upper Left USA
    #15
    I haven't really measured, but I seem to be between 4-5 hours.

    Chrome is my main browser. Beyond that, I'm working in CS5 and Photo Mechanic.

    I've never tried the programs to force it to stay on one graphics card or the other. Now I'm curious, though.

    Anyone else tried it without flash player and noticed a big difference?
     
  16. tekksan macrumors regular

    Joined:
    Mar 27, 2009
    #16
    I too use Chrome and I like to keep lots of tabs open of all my favorite sites (like 20 tabs) and my battery life was sucking hard (on a 2010 i5 15" running the Intel GPU).

    I'd watch my battery % and would notice huge cpu load with Chrome Renderer's (as seen in Activity Monitor) now and then. What's nice about Chrome, you can kill the one Renderer that sucking up all your CPU and you'll see a little frowny face on the tab of the web page that was causing the high CPU.

    99% of the time the tab that was causing high CPU (and thus sucking up battery) was one where some kind of flash advertisement was playing SOOO..I installed a flash blocker program for chrome and my battery life shot up soon after.

    In short, Flash can kill battery life very very quickly by spinning up that CPU. Try a flash blocker and see what you get.

    On a side note, Adobe has released Flash 10.2 beta which I've found to be much much better with regard to CPU %. Also, a note on Chrome-you have to disable the built-in Flash engine to make use of the new beta standalone version of Flash.
     
  17. Fubar1977 macrumors 6502a

    Fubar1977

    Joined:
    Jul 30, 2010
    Location:
    North Yorkshire, UK
    #17
    My i5 2.4 will do around 7 hours or so with flash enabled and gfxcard installed (Great program,highly recommended) even running a 42" external display I can get around 5 hours.
    Not the 8-9 hours Apple claim but to be honest I don`t think that is realistic or achievable unless you have almost nothing running and your display barely lit up.
    Still miles better than the 2 hours max all my previous laptops could manage.
     
  18. ryanrich macrumors regular

    Joined:
    Nov 16, 2010
    Location:
    Cape Town, South Africa
    #18
    Go into System Profiler and then Hardware->Power and see what your Full charge capacity (mAh) is. It should be around 6900. If it's lower then your battery charge isn't so good anymore and you can try a calibration or take it in to an Apple store.

    My i7 lasts around 3-4 hours on heavy use in the mornings, but around 6-7 hours with regular usage. You will only get the quoted times from Apple with screen brightness set really low, minimal WiFi usage and very little CPU usage. I also highly recommend gfxCardStatus. I constantly have mine running on the Intel GPU for normal tasks, and only switch to the nVidia chip when doing graphics intensive work like Photoshop or something.
     
  19. thegreatdivorce macrumors regular

    Joined:
    Sep 23, 2010
    Location:
    Upper Left USA
    #19
    @tekksan, thanks. I enabled Flash 10.2 in Chrome. Be interesting to see the difference.
     
  20. UrbanerMezei macrumors member

    Joined:
    May 28, 2010
    Location:
    Ottawa, Canada
    #20
    Using flash will destroy all bets on your battery life. Version 10.2 or otherwise, software rendering takes massive amounts of CPU power to do, which takes massive amounts of battery.
     
  21. tomf macrumors regular

    Joined:
    Nov 11, 2009
    #21
    I was just wondering about this 'Gfxcardstatus' - is that not the same as enabling 'Automatic Graphics Switching' in system preferences?

    Just wondered, as i'd like to save my battery life as much as possible.

    Thanks for any help or advice. :)
     

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