Is this normal for a 10 day old battery?

Discussion in 'MacBook' started by nitra.candy, Feb 22, 2009.

  1. nitra.candy macrumors newbie

    Joined:
    Jun 13, 2008
    #1
    Hi,
    I recently got my first Mac but the battery once fully charged never goes to 100%. I downloaded iStat Nano to check the battery health.

    Cycles:6
    Health: 99% (4082 mAh)

    Is this normal for the readings to drop so much for a new laptop?
     
  2. shady825 macrumors 68000

    shady825

    Joined:
    Oct 8, 2008
    Location:
    Area 51
    #2
    They tend to fluctuate a bit... Just keep a eye on it.
     
  3. sporadicMotion macrumors 65816

    sporadicMotion

    Joined:
    Oct 18, 2008
    Location:
    Your girlfriends place
  4. SFStateStudent macrumors 604

    SFStateStudent

    Joined:
    Aug 28, 2007
    Location:
    San Francisco California, USA
    #4
    Did you calibrate it? I usually calibrate it after a full charge. Your mAh should be at least 5000 or thereabouts. I've got (1) cycle on mine. You might try Coconut Battery...
     
  5. priller macrumors regular

    Joined:
    Dec 15, 2007
    #5
    Not normal imo, mines never dropped below 100% health.
     
  6. nmonti macrumors member

    Joined:
    Oct 30, 2008
    #6
    It is quite normal but if you are concerned try running the battery all the way down to the point where the computer warns you about low power and then let it charge over night to see what happens. Hope that helps.
     
  7. Patriks7 macrumors 65816

    Patriks7

    Joined:
    Oct 26, 2008
    #7
    That may be true for your Pro, but definitely not for his MacBook. MacBooks have fairly smaller batteries compared to your Pro.
     
  8. KnightWRX macrumors Pentium

    KnightWRX

    Joined:
    Jan 28, 2009
    Location:
    Quebec, Canada
    #8
    Aluminium MacBooks don't have 5000+ mAh batteries. The Max charge is around 4200 mAh.
     
  9. nitra.candy thread starter macrumors newbie

    Joined:
    Jun 13, 2008
    #9
    I've actually already calibrated it. I put the plug back in when I was getting the low battery warning.
    I'm calibrating it now and going to let it completely die before I charge it to see if that makes much differences.
    I'd just like the battery to be at 100% health.

    Edit: I'm a she.
     
  10. sporadicMotion macrumors 65816

    sporadicMotion

    Joined:
    Oct 18, 2008
    Location:
    Your girlfriends place
    #10
    Don't worry about it. The difference between 100% and 99% is 4085 and 4086 MA in the battery (around there)... it will jump between the 99 and 100 and it is 100% ok for that to happen. Just sit back and enjoy your new computer. It'll migrate up to 100% over time.
     
  11. nitra.candy thread starter macrumors newbie

    Joined:
    Jun 13, 2008
  12. harrishimo macrumors member

    Joined:
    Feb 9, 2009
    #12
    hey, my macbook (alu) is just gettin to its 1 week old mark, haha

    i noticed mine does the same, unplug the power adaptor and use it until it gets to about 50% charge then plug it in and let it fully charge!!!

    that should then show 100%, its a tiny thing but i was worried when it happened to me

    :D
     

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