MacBook Air battery problem

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

  1. kayleee macrumors regular

    Joined:
    Nov 20, 2013
    #1
    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

    MacModMachine

    Joined:
    Apr 3, 2009
    Location:
    Canada
    #2
    letting the battery drop that low is bad for it. (consistently)

    charge the battery at 10-20% left.
     
  3. h9826790 macrumors 604

    h9826790

    Joined:
    Apr 3, 2014
    Location:
    Hong Kong
    #3
    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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