MBP has been plugged in all day but charge stopped at 97%?

Discussion in 'MacBook Pro' started by rudyrox, Feb 25, 2009.

  1. rudyrox macrumors member

    Joined:
    Feb 4, 2009
    #1
    i leave my mbp plugged in (which i got 2 days ago) and its in better performance mode. yet when i turned it on it says the charge is 97%. how can that be? there isn't even a time next to it saying when its going to be 100%
     
  2. ayasin macrumors 6502

    Joined:
    Jun 26, 2008
    #2
    That happens to me sometimes, it's easy enough to fix. Unplug your machine and let it run down below 95%, then plug it back in. It should charge to 100%.
     
  3. rudyrox thread starter macrumors member

    Joined:
    Feb 4, 2009
    #3
    so its not a faulty battery that doesn't have its full life?
     
  4. nopassn macrumors regular

    Joined:
    Jan 15, 2009
    Location:
    Kansas City
    #4
    Nah... mine did that the other day too... I took it off the battery for a half hour or so and ran it down a bit and then plugged it in when I got done using it... charged back to 100% the following morning.
     
  5. ergdegdeg Moderator emeritus

    ergdegdeg

    Joined:
    Oct 13, 2007
    #5
    No, it's a method to make battery life longer as it only charges back up when it gets below 95%.
     
  6. darngooddesign macrumors G3

    Joined:
    Jul 4, 2007
    Location:
    Atlanta, GA
    #6
    Apple did that so the battery wouldn't be constantly charging for tiny increments; its better for the overall life of the battery. I wouldn't sweat it if I were you.
     
  7. dmmcintyre3 macrumors 68020

    Joined:
    Mar 4, 2007
    #7
    That is normal my PowerBook does it all the time. In fact it is doing it now time to run it down to 94% and back up
     
  8. Patriks7 macrumors 65816

    Patriks7

    Joined:
    Oct 26, 2008
    #8
    As far as I'm aware, it doesn't start charging again until it reaches 95%.

    Edit: Looks like I'm late to the party again :p
     
  9. rudyrox thread starter macrumors member

    Joined:
    Feb 4, 2009

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