battery still charges up to 100% even if it starts out above 95%

Discussion in 'MacBook Pro' started by jenny.lee12, Aug 15, 2009.

  1. jenny.lee12 macrumors newbie

    Joined:
    Aug 15, 2009
    #1
    I am an owner of a brand new macbook pro. I know that the macbook is programmed to stop charging if it's over 95% to save charge cycles, but even when my macbook is at 98%, the charger light is still red and the macbook charges to 100%. Is something wrong with my macbook?

    Thanks for your help.
     
  2. kryptonianjorel macrumors 6502

    Joined:
    Jul 3, 2009
    #2
    Thats only half true. You're not giving us any details of your situation really. My computer charges to 100% all the time, but only when I begin charging when the battery is UNDER 95% charge. Now, if you try to begin charging when the laptop is 95% capacity or above and and the computer charges, then you have a problem
     
  3. jenny.lee12 thread starter macrumors newbie

    Joined:
    Aug 15, 2009
    #3
    yes that's my problem, my macbook is initially above 95% and when i plug the charger in, it charges anyway.
     
  4. kryptonianjorel macrumors 6502

    Joined:
    Jul 3, 2009
    #4
    Assumming this is an Apple-Certified battery, my only advice is a calibration. Your % gauge may be lying to you, much like your gas gauge often does
     

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