Macbook Pro unibody battery problem

Discussion in 'MacBook Pro' started by terefere, Nov 18, 2011.

  1. terefere macrumors newbie

    Joined:
    Jan 20, 2010
    #1
    Hello,
    For a week or so I have been having problems with my Macbook's battery.
    Instead of usual 3-4 hours it only lasts 40-70 minutes. I immediately checked battery properties and it says that it only has 1769mAh...

    You can see it on a screenshot here:
    http://dl.dropbox.com/u/1211620/macbook2.jpg

    Sorry it is in Polish, but I am sure you can figure everything out

    The macbook is from 2009:
    http://dl.dropbox.com/u/1211620/macbook1.jpg

    Any suggestions will be appreciated.

    Thanks!
     
  2. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #2
    Have you calibrated the battery yet or looked at Activity Monitor to see, what process might hog the CPU?
    ______________________________________________________
    This should answer most, if not all, of your battery questions:
    Apple Notebook Battery FAQ by GGJstudios
    ______________________________________________________
     
  3. terefere thread starter macrumors newbie

    Joined:
    Jan 20, 2010
    #3
    I did not calibrate the battery, on the apple website is says that batteries in unibody Macbooks are already calibrated, should I do it anyway?

    Nothing is hogging the CPU, the problem is that the battery now has 1769 mAh instead of 5000mAh or whatever it was and should be...
     
  4. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #4
    Yes, you should. Rad the battery FAQ I linked to and also have a look at Coconut Battery.
    You can also use the [​IMG] button to insert the image address and have the image visible here, but know, that if your image is wider than 800 pixel, that you should add a "T" in front of both IMG tags surrounding the address.
     
  5. terefere thread starter macrumors newbie

    Joined:
    Jan 20, 2010
    #5
    I read the FAQ, but it doesn't really help. I will calibrate the battery tonight, but the whole process seems like something that I did accidentaly few days ago ;-)

    Coconut Battery shows this:
    [​IMG]
     
  6. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
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    #6
    646 load cycles in two years without proper and frequent calibration can do that to a battery, that is why I linked to the a Battery FAQ, as it tells you how to take care of your battery.
    Do you still have Apple Care or some similar warranty?
     
  7. terefere thread starter macrumors newbie

    Joined:
    Jan 20, 2010
    #7
    I do not have AppleCare or any kind of warranty.

    I know 646 cycles is a lot, but I have another Macbook, old good white this time, and it has over 800 cycles:

    [​IMG]

    That's what I would expect, 86% after almost 4 years and 855 cycles seems resonable. 33% after 2 years and 646 cycles does not, at least to me. Also, in the FAQ you linked it says:

     
  8. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #8
    Yeah, I know, that is why I asked about warranty or Apple Care, as you may have a faulty battery. It happens, especially with mass produced hardware.
    My MacBook had only 300 cycles in two and a half years, but it still had a health of 97% or more (I sold it a while ago).
    Sorry I can't be of further help.
     
  9. terefere thread starter macrumors newbie

    Joined:
    Jan 20, 2010
    #9
    Thanks for trying ;) Maybe someone else has something to add?
     
  10. TheJing macrumors 6502a

    TheJing

    Joined:
    Jun 13, 2011
    Location:
    Somewhere in Europe
    #10
    Correct me if I'm wrong, but calibration does not affect the battery's capacity. It is only to get a more accurate reading.
     
  11. miles01110 macrumors Core

    miles01110

    Joined:
    Jul 24, 2006
    Location:
    The Ivory Tower (I'm not coming down)
    #11
    This is correct.
     

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