New MacBook Pro battery life

Discussion in 'MacBook Pro' started by zhensun, Oct 18, 2008.

  1. zhensun macrumors newbie

    Joined:
    Jul 1, 2007
    #1
    I got the new MBP and the battery life is not 5 hours. I am on the lowest brightness and I have no other program running and the best I could get is 3.5. Is anyone else experiencing this?
     
  2. LinMac macrumors 65816

    Joined:
    Oct 28, 2007
    #2
    Which model Macbook Pro did you purchase and which options did you purchase with it?
     
  3. zhensun thread starter macrumors newbie

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    Jul 1, 2007
  4. richard.mac macrumors 603

    richard.mac

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    Feb 2, 2007
    Location:
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    #4
    battery life is always lower than the stated and that goes for every device. its the theoretical maximum. thats pretty good battery life actually.
     
  5. nick9191 macrumors 68040

    Joined:
    Feb 17, 2008
    Location:
    Britain
    #5
    Did you turn off bluetooth? Top bar next to WiFi.
     
  6. ntrigue macrumors 68040

    ntrigue

    Joined:
    Jul 30, 2007
    #6
    Battery calibration is highly recommended.

    Apple has adjusted battery life tests to be real world before Penryn. They used to be inaccurate.
     
  7. zhensun thread starter macrumors newbie

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    Jul 1, 2007
    #7
    I did turn off bluetooth and calibrated the battery. Maybe I should do it again.
     
  8. pufftissue macrumors regular

    Joined:
    Sep 9, 2006
    #8
    3.5 hours is probably correct. I usually half or multiply the official estimate by 0.6.

    You can't use a machine at the lowest brightness unless you work in pitch dark conditions.
     
  9. jTreu macrumors 6502

    Joined:
    May 20, 2006
    #9
    always take like atleast 20% off of what they say, ad did you make sure to switch the graphics to integrated?
     
  10. Steve686 macrumors 68020

    Steve686

    Joined:
    Nov 13, 2007
    Location:
    US>FL>Miami/Dade>Sunny Isles Beach>Condo
    #10
    Use your battery for a few more charges before you make the final judgment.
    On my old MacBook, I went from around 4.5 up to around 5.75 hours with BT off, WiFi off, and low screen brightness, after about 20-30 battery cycles.

    You don't need to drain the battery down or anything, but keep using the battery to make sure all the Li-Poly cells are getting activated.

    So far, I am getting about 4 hours tops with same settings and "onboard" video activated. It does take forever for my battery to charge also. I am going to do a battery calibration after a few more cycles and see what I am at in about a week.
     
  11. kobefan234 macrumors 6502

    kobefan234

    Joined:
    May 12, 2008
    #11
    Buy a replacement battery so you have like 10 hours!
     
  12. eddy64 macrumors regular

    Joined:
    Feb 5, 2008
    #12
    this is so disapponting. I always bragged about the mbp's battery life. I was really looking forward to 4-5 hours of battery, minimum.
     
  13. coolb0yalex macrumors member

    Joined:
    Jul 3, 2008
    #13
    are you energy saving (lower powered GPU) or the higher performance (high powered GPU)? Maybe that solves your problem?
     
  14. LinMac macrumors 65816

    Joined:
    Oct 28, 2007
    #14
    I turned on the low powered GPU (which is quite powerful in itself) and then turned the screen to my preferred setting (fairly dim).

    I get 5 hours and about 30 minutes of browsing/work out of mine. I tested it to see exactly how much I could get out of it.
     
  15. Steve686 macrumors 68020

    Steve686

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    US>FL>Miami/Dade>Sunny Isles Beach>Condo
    #15
    I also turn off auto-brightness. This makes the screen brighter in bright light which will obviously cut down on batt time.

    I also make sure during the day that the backlights on the keyboard are completly off.

    A lot of little adjustments will go a long way.
     
  16. acearchie macrumors 68040

    acearchie

    Joined:
    Jan 15, 2006
    #16
    Cor all this complaining, I know you've all paid for a new laptop but in comparison my powerbook battery lasts for 4 minutes!
     
  17. zhensun thread starter macrumors newbie

    Joined:
    Jul 1, 2007
    #17
    It is on the lower powered CPU. I'm going to keep going through more cycles of charges and see if it gets better. The time remaining on the battery jumps like crazy. One sec it was 3:38 left on 89% and then it said 1:24 on 86% and then back up again.

    Do you guys think its the laptop or the battery?
     
  18. snowmoon macrumors 6502a

    snowmoon

    Joined:
    Oct 6, 2005
    Location:
    Albany, NY
    #18
    Bring up Activity Monitor and set it to All processes sorted by CPU. Check to make sure that something like backup ( TM ) or mdworker ( indexing ) is not running and consuming your cpu/battery.

    If it doesn't get any better just bring it into the store and see what they have to say.
     
  19. Tex-Twil macrumors 68020

    Tex-Twil

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    May 28, 2008
    Location:
    Europe
    #19
    not bad !
     
  20. masse macrumors 6502a

    masse

    Joined:
    May 4, 2007
    Location:
    MA/GA
    #20
    I'm kind of pissed they lowered the capacity...but who isn't? I don't run off of battery power much so it doesn't matter. What kinds of programs were you running? They do the tests surfing the internet and playing itunes I believe.
     
  21. delude macrumors 6502

    Joined:
    Dec 27, 2007
    Location:
    UK
    #21
    Do you just run off the power AC power adapter? If so, do you leave your battery in or take it out?
     
  22. Kane.Elson macrumors regular

    Joined:
    Jul 27, 2006
    #22
    I hope when mine arrives it is more of the 5:30 mentioned than the 3's and stuff. It's kinda worrying that there is such a variance... Im hoping the people with low readings are just doing something silly like running programs in the background or something.
    My thinkpad does 5 so I will be dissapointed with much less than that.
     
  23. deriko100 macrumors 6502

    Joined:
    Jul 29, 2008
    Location:
    New York
    #23
    I get 1 Hour on my new mbp the 1999 model didnt try calibration, maximum brightness and playing games like WOW.
     
  24. Tex-Twil macrumors 68020

    Tex-Twil

    Joined:
    May 28, 2008
    Location:
    Europe
    #24
    I have 4.30 and Im doing nothing but surfing. Calibrated battery with 99% health, lowest brightness.
     

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