brand new, fully-charged MBA 11 only shows 3 hours of battery life

Discussion in 'MacBook Air' started by arrowtree, Dec 4, 2013.

  1. arrowtree macrumors member

    Nov 30, 2013
    I got my MBA 11 this morning. First thing I did was plugging in the charge.
    A few hours later, I powered it on for the first time. :)

    After using it for about an hour, I noticed the battery life was showing
    3 hours remianing. The brightness is set to slightly less than 50%.

    All I've done was browsing the internet using Safari and figuring out
    how the Mac OS works. Nothing that I would consider CPU or SSD
    intensive usage.

    I shut it down again around 5:00pm and plugged the charger back in.
    Just turned it back on again around 7:30pm. It's been sitting there
    for 15 minutes. The battery remaining time now shows a a little over
    4 hours.

    Is this normal? Or will it go up after several charge/discharge cycles?
    Obviously I know it's not going anywhere near the 9 hours claimed
    by Apple... but 3 or 4 hours on a full charge seems awfully short to me.
  2. yosemit macrumors regular

    Jul 19, 2013
    It's normal. Won't be surprised if the meter shows 3 hours and the actual is 8-9 hours. :)

    By the way, a new mac may run some intensive background jobs like building index or updating the OS.

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