Fully charged at 99%?

Discussion in 'MacBook Air' started by Mooncakes, Nov 29, 2011.

  1. macrumors newbie

    Nov 28, 2011
    Hey guys i just bought a 11in mba and i find it strange that my mba is fully charged at 99%. Is this normal? Should i get it exchanged?
  2. macrumors 65816

    Bernard SG

    Jul 3, 2010
  3. macrumors Westmere


    May 16, 2008
    It's normal for it to stop charging between 93% and 99%. Read the CHARGING section of the following link for details. This should answer most, if not all, of your battery questions:
  4. macrumors newbie

    Jul 23, 2011
    Barrington RI
    thats normal for the first few charges. Had the same results with my 13inch but after about 5 cycles the battery was fully charged to 100% nothing to worry about
  5. macrumors 6502

    Aug 30, 2011
    I know exactly what you are saying, I had a similar thread before.

    You must have your laptop plugged in all the time. Once you take the charger off, use some battery, recharge it again, it will go back to 100%.

    It worked for me, try it, let me know if it works.
  6. thread starter macrumors newbie

    Nov 28, 2011
    I unplugged laptop, then it was charged to 100%. I kept my mba plugged in ever since i saw 100%, now its dropped to 98%. I never unplugged it. Is this normal?
  7. macrumors Westmere


    May 16, 2008
    Yes, it's normal. Read the AC POWER section of the Battery FAQ in post #3.
  8. macrumors 6502a

    Oct 26, 2011
    yup..also while the MBA battery doesn't need calibration like the older ones, you should still use it on battery every once in a while
  9. macrumors 6502

    Aug 25, 2011
    New Zealand
    When the lift on the charger goes green and the Macbook Air is charged the battery will stop charging. Therefor like any battery it will naturally loose charge a little bit over time.
  10. macrumors 6502


    Jul 22, 2008
    Wirelessly posted (Mozilla/5.0 (iPhone; CPU iPhone OS 5_0_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A405 Safari/7534.48.3)

    Yes the battery discharges slightly over time even if you leave to plugged to the mains.
  11. macrumors member

    May 25, 2011

    nothing to worry about. this is actually a safety measure so your macbook won't melt due to heat caused by overcharging.

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