3 Replies Latest reply: Sep 2, 2013 5:12 AM by clintonfrombirmingham
H B Chohan Level 1 (0 points)

Question1:  My MacbookPro is always connected to the mains electricity. But battery always shows 97% not 99%. Am I doing something wrong?


Question2: Is it a good habit to always have the MacbookPro laptop plugged into the main electricity when at home? Does this reduce the quality of the equipment or lessen the performance??

MacBook Pro, iOS 6
  • stedman1 Level 9 (69,774 points)

    See the Apple article below.



    It is OK to leave the computer plugged in, but be certain to disconnect and use on battery power a couple times during the week, or when you need portability.

  • nbar Level 5 (6,980 points)

    Stedman address your second question.


    As for the first, this is normal. You can try unplugging it for 5 min, and then plugging it back it. MBP usually only resume charging below 95%, so it is sometimes hard to even reach full charge capacity.


    Stedman addressed both your questions. Didn't see the original link posted. Message was edited by: nbar

  • clintonfrombirmingham Level 7 (30,000 points)

    Nothing to worry about, really.


    I leave my MacBook Pro plugged into mains about 98% of the time (mainly because I have a 27" monitor and use it primarily as a 'desktop'). But I have a reminder setup for every two weeks and then I will disconnect from mains and let the battery run down to 30-40% and then connect to mains again. This keeps the ions moving and the battery healthy.


    I bought my current MacBook Pro in March of 2012 and my battery 'health' reads between 98-99%.


    It's a good habit to simply disconnect from mains once every couple of weeks and let teh battery run down to 30-40% before plugging her back up.