MacBook Air battery problem

Discussion in 'MacBook Air' started by kayleee, Sep 13, 2014.

  1. kayleee macrumors regular

    Nov 20, 2013
    When the battery falls to 0%

    i need to charge but when i plug in the charger i have to want for like 2-3 mins before it starts from sleep again

    this has started after mavericks 10.3 i guess

    or maybe its a hardware issue?

    i don't know

    previously it used to start even instantly even though it showed 0% battery
  2. MacModMachine macrumors 68020


    Apr 3, 2009
    letting the battery drop that low is bad for it. (consistently)

    charge the battery at 10-20% left.
  3. h9826790 macrumors G4


    Apr 3, 2014
    Hong Kong
    That's a protection from the hardware. Apple will never allow your battery to reach real 0%. For Lithium ion battery, once you reach real 0%, it will die and never able to charge up again.

    When your indication is 0%, the computer will not able to power up, but the battery do actually have few % reserve to protect itself.

    The battery may slowly discharge even though your computer already shutdown. Therefore, when you recharge it, the computer won't allow you to start until the battery recharged to certain level. It make sure those reserve are always available and you can't kill the battery.

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