Your Retina Coconut battery results

Discussion in 'MacBook Pro' started by Pagga, Jul 6, 2012.

  1. Pagga macrumors 6502

    Pagga

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    #1
    After 3 load cycles, the capacity is seemingly rising ...

    Current = 8729 mAh
    Design = 8460 mAh
     

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  2. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #2
    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 questions:
     
  3. medulla macrumors regular

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    Jun 15, 2012
    #3
    It'll even out after a while..
     

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  4. Pagga thread starter macrumors 6502

    Pagga

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    #4
    Coconut battery is an excellent, tiny program that reads both your battery capacity and the age of your mac, number of load cycles et ceterea.
    Download here if you don´t have it:
    http://www.coconut-flavour.com/
     
  5. GGJstudios macrumors Westmere

    GGJstudios

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    #5
    Be aware that coconutBattery has had accuracy issues, especially with the age reading. An alternative is iStat Pro, which tracks a lot more than just battery, including temperatures, fan speeds, drive, CPU and memory usage, etc.
     
  6. medulla macrumors regular

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    Jun 15, 2012
    #6
    Thanks. Very similar to battery health but in search of the best one I settled with the iStat Menu.. Really nice! They have a trial for 14 days..
     
  7. egraphixstudios macrumors 6502

    egraphixstudios

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    Dec 28, 2007
    #7
    I thought apple mentioned that the new generation batteries don't need cycle charging? i.e. max capacity from the word go...?
     
  8. GGJstudios macrumors Westmere

    GGJstudios

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    May 16, 2008
    #8
    They don't need calibration. They have maximum capacity when they're new. The capacity reading will fluctuate both up and down over time, but will ultimately decline over time. The Battery FAQ has more details.
     
  9. medulla macrumors regular

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    Jun 15, 2012
    #9
    They don't need calibration ever? Every few months?
     
  10. GGJstudios macrumors Westmere

    GGJstudios

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    May 16, 2008
    #10
    The built-in batteries in the newer Mac unibody notebooks come pre-calibrated and do not require regular calibration like the removable batteries. Calibration has no effect on your battery's health; it only served to make the battery readings more accurate in older Macs.
     
  11. Pagga thread starter macrumors 6502

    Pagga

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    #12
    I get this now:
     

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  12. Pagga thread starter macrumors 6502

    Pagga

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  13. Teo Morabito macrumors member

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    Bali
    #14
    Because it can hold 3% more plutonium than it was designed to do. :D
     
  14. Dangerous Theory macrumors 68000

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    UK
    #15
    Because its programmed to do a simple arithmetic calculation. 8735/8460 x 100 = 103% rounded
     
  15. tim100 macrumors 65816

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    May 25, 2009
    #16
    my retina current capacity just dropped big time down to 94% now 92% only 80 cycles. wow. image retention and bad battery life. great
     
  16. robvas macrumors 68020

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    Mar 29, 2009
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    USA
    #17
    Because measuring and worry about this is a huge waste of time.
     
  17. GGJstudios macrumors Westmere

    GGJstudios

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    #18
    That was answered 4 months ago in the first response to this thread.
    Read the 2nd post of this thread.
     
  18. Junkyman macrumors regular

    Joined:
    Sep 19, 2012
    #19
    Is it advisable to discharge the battery (15 inch Mac Retina) on a regular basis? Or can I basically leave the Mac plugged in at all time without worrying about the capacity and health of the battery?
     
  19. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #20
    Run on battery whenever you need to and plug it in whenever you can. You can plug or unplug any time you need to, regardless of the charged percentage, and you never need to completely drain your battery. Just make sure you don't run on AC power exclusively, as your battery needs to be used regularly to stay healthy.

    If you haven't already done so, I highly recommend you take the time to read the Apple Notebook Battery FAQ in the 2nd post of this thread.
     
  20. GGJstudios macrumors Westmere

    GGJstudios

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    May 16, 2008
    #22
    Not at all. It's quite normal.
     
  21. tivoboy macrumors 68030

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    May 15, 2005
    #23
    so,,,

    so, what is up with this?

    Battery has been seemingly poor, dying in about 4-4.5 hours. normal wifi, I graphics, just web and email.


    Why would the battery capacity show 8199, when design capacity is 8460?

    Most people here seem to show higher numbers, not lower numbers.

    cycle count is 4, which is accurate since I have owned it.
     

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  22. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #24
    Read the BATTERY LIFE section of the Battery FAQ linked in post #2 of this thread.
    Read post #2 of this thread.
    Most people have 100% or less. A few who have posted here had over 100%, but that won't last.
     
  23. myxomatosis, Dec 11, 2012
    Last edited: Dec 11, 2012

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