Battery charged at 98%

Discussion in 'MacBook' started by jaredtomas, Jan 12, 2009.

  1. jaredtomas macrumors regular

    jaredtomas

    Joined:
    Aug 11, 2008
    Location:
    Australia
    #1
    My battery often says it's charged at 98%

    Is this something I should be concerned about?
     
  2. PilotWoo macrumors regular

    Joined:
    Jul 14, 2006
    #2
    No unless it's new. Their ability to store charge degrades over time. Mine won't go over 98% either.
     
  3. jaredtomas thread starter macrumors regular

    jaredtomas

    Joined:
    Aug 11, 2008
    Location:
    Australia
    #3
    I forgot to mention that the Macbook is only a month old.
     
  4. VSMacOne macrumors 601

    VSMacOne

    Joined:
    Oct 18, 2008
    #4
    have you tried calibrating your battery?
    Before you do the calibration, try unplugging your computer, let it get down to about 85% and then plug it back in and see if it goes past 98%...
     
  5. bozz2006 macrumors 68030

    bozz2006

    Joined:
    Aug 24, 2007
    Location:
    Minnesota
    #5
    check your battery's health, either in istatpro, or coconutbattery, or even system profiler.
     
  6. crazzyeddie macrumors 68030

    crazzyeddie

    Joined:
    Dec 7, 2002
    Location:
    Florida, USA
    #6
    This is totally normal. You don't need to do calibrate or do anything of the sort. Trying to force it to 100% all the time will actually damage the battery.
     
  7. MattsxB macrumors member

    Joined:
    Jul 16, 2007
    #7
    i had the same issue with my 2 month old macbook 98% with 25 charge cycles, I called apple care and I had a new battery within 24 hours, sent the faulty one back same day. It works great now.
     
  8. Theophany macrumors 6502

    Theophany

    Joined:
    Nov 16, 2008
    Location:
    NW London.
    #8
    My Dec '06 MB battery conked out after a month because of the issue some batteries had back then of completely dying if their charge depleted when the MB was in sleep mode. Had a brand new battery within 2 days care of AppleCare. This battery has served me well since, however, according to iStatPro the charge it holds is still at 100%, but the battery's health is at 64%. What exactly does this mean and should I be worried?

    As far as I can tell there isn't anything wrong with the battery. I am aware that Li-Ion cells degrade over a period of three or four years, but my MB can still crank out 4-5hrs of usage with Wi-Fi and Bluetooth enabled provided the screen isn't set to it's 'blinding' setting.
     

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