My macbook air 2011 Battery health 93% ?

Discussion in 'MacBook Air' started by Derpao, Oct 16, 2011.

  1. macrumors newbie

    Joined:
    Oct 16, 2011
    #1
    I have got my macbook air 2011 128 ssd 13 inc about 2 mounts

    My Battery cycles now is 65

    and my battery health went down to 93%



    Should I worry about it ?

    If,yes Can I replace it to Apple ?


    Thank a lot
     
  2. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #2
    Have you calibrated it yet?

    Be sure to read the following:
    ______________________________________________________
    This should answer most, if not all, of your battery questions:
    Apple Notebook Battery FAQ by GGJstudios
    ______________________________________________________
     
  3. thread starter macrumors newbie

    Joined:
    Oct 16, 2011
    #3
    Yes, I did it yesterday

    :confused:
     
  4. macrumors 6502a

    IngerMan

    Joined:
    Feb 21, 2011
    Location:
    Buffalo, NY.
    #4
    I would not worry about it. It will vary on it's health status. The battery is supposed to be good for 1,000 cycles. If it drops below 80% before 800 cycles then you may have something.

    Also Apple can replace your battery with a new one for just over $100. But I doubt you will need to worry about that for another 800+ cycles.
     
  5. thread starter macrumors newbie

    Joined:
    Oct 16, 2011
    #5
    lol, Thank a lot, let's see how another 800+ cycles would be
    Thank
     
  6. macrumors regular

    Joined:
    Aug 17, 2010
    #6
    Apple said for the 2011 Air it's 750 cycles.
     
  7. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #7
    Where does it say this?
     
  8. macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #8
    Not true. Read the Battery FAQ. The 750 cycles refers to Airs prior to Late 2010.
     
  9. macrumors regular

    Joined:
    Aug 17, 2010
    #9
    Yea, I guess your correct, right when the new Air was launched Apple left the old battery info on their website, it has now been updated and changed, sorry for any confusion.
     
  10. macrumors 65816

    Joined:
    May 7, 2009
    Location:
    Hamilton Island, Whitsundays, QLD Australia
    #10
    if you're battery carks it within the warranty period, I'd say that Apple will either replace it free of charge or at least pro rata the cost of replacement.

    as someone's already mentioned, we're only talking a hundred bucks.

    "AppleCare WILL, however, extend the defective battery replacement period from 1 to 3 years"

    and if you don't get a reasonable number of cycles before its capacity drops below 80% then there's a good chance it could be seen as 'defective'
     
  11. macrumors member

    Joined:
    Nov 2, 2010
    #11
    Mine is at 95% after 9 cycles. Also can't seem to get more than 5 hours out of it with just browsing (flash blocked). Using the 13" btw. Guess I'll see what happens down the road.
     
  12. macrumors newbie

    Joined:
    Jan 23, 2004
    #12
    96% Health

    I think there are a lot of issues with the new MBA. It has the worse battery life out of all my previous Macs, even when I'm using it lightly. There is something either wrong with Lion or the way they built the 2011 MBAs. I waited for 10.7.2 to make it better, but it really hasn't. The rapid usage of battery is why your battery health has deteriorated so quickly, I go through 1 cycle in about 4.5 hrs. NOT the 7 hours they advertise. This is all just browsing with some background apps. There is very long thread on the apple support boards about the MBPs and Lion and horrible battery life.

    So here are my specs:
    i7 core 13" MBA 2011 4GB RAM 256 SSD - after 10.7.2 upgrade

    Some battery stats (typical browsing, word running in background, mail up)
    13:00 59%
    13:46 42%
    14:07 34%

    This would just net me 4.5 hours total.

    https://discussions.apple.com/thread/3410788
     
  13. macrumors member

    Joined:
    Oct 18, 2011
    #13
    This is a noob question, but how do you guys know what is your battery cycle?
     
  14. macrumors 65816

    Adidas Addict

    Joined:
    Sep 9, 2008
    Location:
    England
    #14
    I use iStat pro, but you can use coconut battery if you prefer.
     
  15. macrumors regular

    Husky1992

    Joined:
    Aug 26, 2011
    Location:
    rome
    #15
    I'm at 92.6% health with only 31 cylcles and 4.3 month. Is it ok?

    p.s. my mbp does NOT have 4 month, I think it's under 2...why is that showing up?
     
  16. macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #16
    It is perfectly normal if your battery health (maximum capacity) is more or less than 100%, even when brand new, or if it fluctuates up or down over time. For further details, read the CHECKING STATUS AND HEALTH section of the following link.

    This should answer most, if not all, of your battery/charging questions:
     
  17. macrumors 6502a

    jmgregory1

    Joined:
    Jun 24, 2010
    Location:
    Chicago and Spooner (when it's not 20 below)
    #17
    I'm at 90% with 168 cycles. Was at 94% for quite a while, but has dropped down to the 89% to 91% range lately. I'm not worried - more concerned about getting 7+ hours of daily use out of it, especially while traveling. Fluctuations in percentage of health don't mean much until you get to 80%, when you'll start to see real time use negatively effected.
     
  18. macrumors 68040

    Cynicalone

    Joined:
    Jul 9, 2008
    Location:
    Okie land
    #18
    I'm a heavy battery user. After a little over a year my battery capacity floats between 88 and 92%.

    Screen Shot 2012-08-23 at 10.12.54 AM.png

    It will be interesting to see in the next year or so as I get closer to 700 cycles how it holds up. My older laptops tended to get new batteries in year 2, but if Apple is correct and I can get 1000 cycles out of this battery then I may never need a new battery.
     
  19. macrumors 6502

    BigMcGuire

    Joined:
    Jan 10, 2012
    #19
    You can use apps to do this or you can use the Apple OS. How? Click the Apple symbol on the top right --> About This Mac ---> More Info... ---> System Report --> Power on the left and look under: Health Information.

    ----------

    $100 for a new battery isn't bad at all... I've used mine for 7 months and I'm at 96.9% health and 26 cycles, so I may never need a new battery either (I tend to buy new computers every 3-5 years). Interesting.
     
  20. macrumors 6502a

    Joined:
    Feb 3, 2011
    #20
    My 2010 13 Air is 93%/265cycles after 18 mos. I run it off AC when possible and drain battery once month, and keep it topped off and shutdown at night. Going for 5 years.
     
  21. macrumors 6502a

    Joined:
    Sep 14, 2011
    Location:
    Essex, england
    #21
    Have you let the battery get through a full cycle yet? if not, I would suggest letting your battery run a full cycle at least once every month to help retain the health of it.
     
  22. macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #22
    If they run on battery for a few hours every few days as recommended in the Battery FAQ, they'll average more than one cycle per month.
     
  23. macrumors 6502a

    Joined:
    Sep 14, 2011
    Location:
    Essex, england
    #23

    well that's even better then :D
     
  24. macrumors 6502

    BigMcGuire

    Joined:
    Jan 10, 2012
    #24
    I keep having the little devil on my shoulder telling me that I'll get 100% battery health if I drain my Air's battery down to 0 and back up. lol. Hard to get out of the old Ni-CD/Ni-MH days...
     
  25. macrumors 6502a

    Blackberryroid

    Joined:
    Aug 8, 2012
    Location:
    /private/var/vm/
    #25
    What counts as a "Cycle" anyway? What is a "Cycle" and how do you know you'll get one?
     

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