Battery cycles

Discussion in 'MacBook' started by Hazzarell, Dec 2, 2010.

  1. Hazzarell macrumors newbie

    Joined:
    Oct 24, 2010
    #1
    Hey people.

    Just a quick question. My Macbook's battery has done 902 cycles and is on 92% health. I was just wondering - even though I know it's impossible to predict the life-span of a computer battery - a) how accurate that reading is (I use the iStat Pro widget) and b) ignoring the health reading, is it time to buy a new battery when it hits 1000 cycles?

    The health has gone down from 100% to 92% in the space of about 3 months? Maybe more. Is that a sign that I should change it?

    Thanks in advance. :)

    - Hazzarell
     
  2. iphone1105 macrumors 68020

    iphone1105

    Joined:
    Oct 8, 2009
    #2
    Honestly, I bet you get another good year out of your battery!
     
  3. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #3
    First, if you haven't calibrated properly, your readings may be off. Second, as long as your battery is working, there's no need to replace it, simply because it has a certain number of cycles on it. Your battery health will fluctuate over time. It's normal.

    This should answer most, if not all, of your battery questions: Apple Notebook Battery FAQ
     
  4. Richard1028 macrumors 68000

    Joined:
    Jan 8, 2009
    #4
    1000 cycles... you guys are spoiled.

    My lowly 2008 model needs a new battery every 8-9 months.
     
  5. Hazzarell thread starter macrumors newbie

    Joined:
    Oct 24, 2010
    #5
    Wow. That was quick!

    Thanks guys. I'll have a read through of that FAQ.

    - Hazzarell
     

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