Battery Health

Discussion in 'MacBook Air' started by Mac7, Jun 23, 2013.

  1. Mac7 macrumors 6502a

    Mac7

    Joined:
    Jun 14, 2009
    #1
    Is this normal for a 2012 MBA? 10 months, 124 cycles and already at 86% health?

    Screen Shot 2013-06-23 at 10.52.43 PM.png
     
  2. mayuka macrumors 6502a

    mayuka

    Joined:
    Feb 15, 2009
    #2
    You had 124 charging cycles so far. This number seems to be pretty accurate.
     
  3. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #3
    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. The gradual decline is not in a straight line downward, and it may decline more rapidly at some times and slower at others. For further details, read the CHECKING STATUS AND HEALTH section of the following link. The link below should answer most, if not all, of your battery/charging questions.

    If you haven't already done so, I highly recommend you take the time to read it.
     
  4. Virinprew macrumors 6502

    Joined:
    Apr 24, 2012
    #4
    I don't know. But my MacBook White (2010) 34 months, 586 cycles and 79-81% health. ;)
    [​IMG]
     
  5. OceanFrog macrumors regular

    Joined:
    Aug 19, 2009
  6. BryanLyle macrumors 6502a

    BryanLyle

    Joined:
    Aug 2, 2005
  7. ihonda macrumors 68000

    Joined:
    Sep 17, 2009
    #7
    449 cycles 1.8yrs 80-83.4% over the past 2 days.
     
  8. GeekGuys macrumors regular

    Joined:
    Mar 13, 2009
    #8
    Does this need a Poll????

    MBA 2011, 22 mths old, 177 cycles, 93% (6230)

    This figure fluctuates between 90-93% all the time.

    My MBA Rev 1 (2008) had over 600 cycles and was around 88% last time I checked and had been around 88% for about 4 years!

    I wouldn't worry too much about the % unless it starts to drop.

    EDIT: I just checked my MB White 2007 and it has 96% after 767 cycles....it's been pretty consistent for many years....it's just the battery only last 2 1/2 hours :D
     
  9. RiverDonkey macrumors newbie

    Joined:
    Jan 15, 2012
    Location:
    Copenhagen, Denmark
    #9
    On rMBP, but i remember them talking about improved battery life on this one. :)
    [​IMG]
     
  10. mayuka macrumors 6502a

    mayuka

    Joined:
    Feb 15, 2009
    #10
    Mine had similar numbers until it bloated and finally died. This number does not mean anything, because the battery has no "intelligence". The batteries of newer Macbooks (I think Apple started with these variants when they introduced soldered and non-removable batteries) are chipped and remember the cells which are either defective or not been loaded for a while. That's the reason why we now have accurate numbers on the condition of the battery. As for Mac7 I suggest that he completely discharges the battery at least one time. Doing this a couple of times a year greatly enhances the overall life-span of the battery. That's even Apple's advice on their website.
     
  11. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #11
    It is never necessary to completely disgarge the battery, and doing so will not enhance the lifespan. That was only recommended on older Macs with removable batteries, during the calibration process. The built-in batteries in the newer Mac unibody notebooks come pre-calibrated and do not require regular calibration like the removable batteries in older Apple notebooks.
     
  12. tann macrumors 68000

    Joined:
    Apr 15, 2010
    Location:
    Nottingham, England
    #12
    Edit: Did the picture wrong... so posted below


    2010 MBP here, just for reference.

    Yours seems fine. The health actually can fluctuate quite a bit. Some days mine's 70%+ capacity, other days it's like that.
     
  13. tann macrumors 68000

    Joined:
    Apr 15, 2010
    Location:
    Nottingham, England
  14. robdrj45 macrumors member

    Joined:
    Jun 11, 2012
    Location:
    USA
    #14
    2012 I5, 1 yr old, 104 cycles, currently at 92.1% (6170 mAh)

    Normally fluctuates between 90 and 93 percent.
     
  15. derohan macrumors member

    derohan

    Joined:
    Jul 28, 2012
    Location:
    Nice, France
    #15
    Got mine around the same date as yours :)
    Same config too ^^

    Screen Shot 2013-06-25 at 02.53.39.png
     
  16. oldtime macrumors regular

    Joined:
    Nov 27, 2007
    #16
    Here's mine. Kind of surprised I don't have more cycles given how often I use it on the go.
     

    Attached Files:

  17. robdrj45 macrumors member

    Joined:
    Jun 11, 2012
    Location:
    USA
    #17
    The Air is the best computer I've owned. It's a pleasure to use...lightweight, fast and reliable.

    How do you like yours?
     
  18. dingaling007 macrumors newbie

    Joined:
    Jun 15, 2013
    #18
    Macbook Air 2010 (33 months old)

    150 Cycles - 96% battery health.

    im very impressed, and to actually see some people hitting over 1000 cycles is also very impressive.
     
  19. AppleMacNerd macrumors regular

    Joined:
    Jan 23, 2013
    Location:
    United Kingdom
    #19
    2011 MacbookAir (bought aug 2012)
    i5/4gb ram/128gb ssd.

    1.2 Years old
    Heath 91.1%
    Cycles: 93
    Current Max: 6103 mAh
    Factory Max: 6700 mAh
     
  20. derohan macrumors member

    derohan

    Joined:
    Jul 28, 2012
    Location:
    Nice, France
    #20
    Right now?
    Not so good, I'm going to start a thread in a bit.

    Processes have been getting stuck on ~100% cpu usage for a few months now and have to be ended in activity monitor - Installed a variety of clean OS's on it to figure out where the problem was coming from to no avail.
    ____________________

    Here's the problem though;
    - Computer doesn't turn on one morning
    - Bring it to Apple, computer exterior and interior checked (had to wait a week for a rdv with a tech)
    - Agreed on replacing the motherboard (all under warranty/applecare)

    :D SOFASOGOOD :D

    Today I received a voicemail from the technician stating that he started the repair, but has discovered substancial liquid damage, hence the repair is no longer their cost, but rather mine.

    How do I proceed?
    It's not possible for a motherboard to be alive under stress for months with "substancial liquid damage" until one fine morning when it gave up (as far as I'm aware) :confused:
     

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