Losing battery capacity

Discussion in 'MacBook' started by marcin0903, Jul 18, 2009.

  1. marcin0903 macrumors regular

    Joined:
    May 9, 2009
    #1
    As in thread, I noticed in CoconutBattery and in iStatNano widget that my battery is losing capacity, yesterday I had 96% now I see 94%, I've got my MacBook since May and it has 59 cycles yet. I think that it shouldn't lose capacity now, ok, later but now is to fast, do you think so? Is there any solution to increase this capacity? I've got MB Unibody 2GHz, Late 2008, but I bought it in May 2009 "as new"..
     
  2. miles01110 macrumors Core

    miles01110

    Joined:
    Jul 24, 2006
    Location:
    The Ivory Tower (I'm not coming down)
    #3
    Congratulations, your battery is obeying the laws of physics and chemistry. Batteries lose capacity over time, and day-to-day bookkeeping is ultimately meaningless. If your battery dips under 80% capacity by next May OR before it hits 300 cycles, you've got a case for claiming your battery as "defective."
     
  3. marcin0903 thread starter macrumors regular

    Joined:
    May 9, 2009
    #4
    No it is not ok, I've got 85% of battery capacity, what to do with it?

    [​IMG]
     
  4. andrew upstairs macrumors 6502

    Joined:
    Feb 3, 2009
    Location:
    Downtown Los Angeles
  5. andalusia macrumors 68030

    andalusia

    Joined:
    Apr 10, 2009
    Location:
    Manchester, UK
    #6
    Seriously man, try calibrating first. Then come back if problems persist.
     
  6. marcin0903 thread starter macrumors regular

    Joined:
    May 9, 2009
    #7
    I calibrated it week ago by:

    - Charging up to 100% than stay on AC Adapter at least 5h
    - Let it working to be fully discharged than wait 5-6h
    - Than just charged it to 100% and that's all what I did

    OK I'll try to do calibration again :).
     
  7. Buskape macrumors 6502

    Buskape

    Joined:
    Dec 10, 2008
    Location:
    NGC 4889
    #8
    This doesn't look normal, i've got 100% health and 86 cycles over 8 months, try calling apple explain your situation see what they do about it, your really close to the 80% with only 60 cycles, that is considered a defect for me.

    And i've only calibrated once, that was when i bought the macbook.
     
  8. marcin0903 thread starter macrumors regular

    Joined:
    May 9, 2009
    #9
    I will try to calibrate one more time, if it will be useless I will call Apple Support Line :).
     
  9. marcin0903 thread starter macrumors regular

    Joined:
    May 9, 2009
    #10
    OK I fully charged it before night and turned off for night (fully charged) now, in the morning I started my MB and it has 99%, so I will discharge it and than not use for at least 5h and than plug in power adapter and fully charge, yeah?
     
  10. ahjjones Guest

    #11
    Just use the computer! Those utilities aren't the most accurate and your battery will depelte anyway. Stop worrying about it already.
     
  11. pica93 macrumors member

    Joined:
    Apr 21, 2008
  12. marcin0903 thread starter macrumors regular

    Joined:
    May 9, 2009
    #13
    Hah... before calibration my battery health suddenly increased to 93% than after calibration decreased to 91% - funny, now I see that those apps sucks.
     

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