New Alum Macbook only charging up to 99%

Discussion in 'MacBook' started by idavid84, Oct 22, 2008.

  1. idavid84 macrumors newbie

    Oct 19, 2008
    So I noticed my battery will charge up to 100% sometimes then drop to 99% and never go back up, all while staying plugged into the charger. Did a quick search on here but didnt find anything. Seems like a software problem to me, anyone else experiencing this?
  2. politik.clocks macrumors newbie

    Oct 14, 2008
    I am.

    Mine goes from 100% to 99% to 98% while being plugged in.

    What does someone suggest we do!?
  3. ref26 macrumors 6502a


    Mar 13, 2008
    This happens on old MBs too and is perfectly normal.
  4. politik.clocks macrumors newbie

    Oct 14, 2008
    Are you sure!?
    Thanks for the response. I am just getting extremly paranoid about this laptop.
    Would you be able to tell me the battery life you get on your mac.?

  5. scottintosh macrumors member

    Jun 15, 2008
    my 2.4 aluminum does the same.. It is lame when it says that it is "charged" but it states that it is a 99% charge and doesn't increase.
  6. Chaos123x macrumors 68000

    Jul 8, 2008
    Thats normal.

    My brand new powerbook battery does the same.
  7. idavid84 thread starter macrumors newbie

    Oct 19, 2008
    Ive been doing some more searching on the web and seems like this is common "problem". Doesnt really seem like it is something we need to worry about too much.

    I know what you mean about being really paranoid with this new notebook, I was nowhere near as anal about my first MacBook purchase.
  8. Dybbuk macrumors 6502a

    Aug 8, 2006
    Yeah, my old white MacBook did this as well. It's normal, and intermittent.
  9. rd261 macrumors regular

    Sep 24, 2007
    I think it is actually a feature. It does it so that the battery is not being constantly charged every time it goes below 100%. Once it goes below 95% it starts charging again up to 100% and the cycle repeats again. By using this method the battery should last longer.
  10. angemon89 macrumors 68000


    Feb 5, 2008
    The place where Apple designs stuff
    Every Apple notebook does that. I don't think you can get it back up to 100 unless you let the battery drain a bit then charge it back up to full and it'll display 100 again.
  11. Dybbuk macrumors 6502a

    Aug 8, 2006
    digimon owns
  12. Compile 'em all macrumors 601

    Compile 'em all

    Apr 6, 2005
    how is that supposed to be normal? it is either a s/w bug or something with the h/w.

    *submits bug report*

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