How accurate is coconut battery?

Discussion in 'iPhone' started by Zaft, Apr 7, 2017.

  1. Zaft macrumors 68040

    Zaft

    Joined:
    Jun 16, 2009
    Location:
    Brooklyn, NY
    #1
    I just got my 6s battery replaced from a place that has good reviews and such.
    The battery is coming up as 1640 instead of 1715...
     
  2. keysofanxiety macrumors G3

    keysofanxiety

    Joined:
    Nov 23, 2011
    #2
    Coconut battery is very accurate. But fluctuations of that tiny level (and it is very tiny) are normal and not noticeable whatsoever with normal use. I wouldn't worry!

    Somebody gets an iPhone 7 core benchmark of 3541 rather than 3530 — and that's with digital technology. Lithium is far from that; it's as close to a living, fluctuating thing as you'll get in a phone. Every battery will be slightly different, every charge will give a slightly different reading, and every full capacity will be slightly different. No battery ever charges to 100%.

    TL;DR: no need at all for concern, well not at those numbers anyway.
     
  3. Relentless Power macrumors Penryn

    Relentless Power

    Joined:
    Jul 12, 2016
    #3
    Coconut Battery is the most accurate. It takes live mAh readings versus Apple's, where they use a general mAh reading over a two week span of the actual usage/reading.
     
  4. Mlrollin91 macrumors G5

    Mlrollin91

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    #4
    If I recall correctly, a 6s battery directly from Apple is 1690mAh. So it's possible it's not an OEM battery and it's mixing up CoconutBattery. But CoconutBattery is the most accurate way to check your battery health.
     
  5. Zaft thread starter macrumors 68040

    Zaft

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    Jun 16, 2009
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    #5
    actually the reading says 1612, but the cycle count is 0. So i guess it is new.
     
  6. Mlrollin91 macrumors G5

    Mlrollin91

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    #6
    If the cycle count is 0 the battery is new. But that doesn't make it OEM.
     
  7. akash.nu macrumors 603

    akash.nu

    Joined:
    May 26, 2016
    #7
    How are you guys using coconut battery when Apple has dropped the battery reading APIs?
     
  8. willmtaylor macrumors G3

    willmtaylor

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    Location:
    A Natural State
    #8
    Connected to a computer instead the on phone app (I'm assuming).
     
  9. Zaft, Apr 7, 2017
    Last edited: Apr 7, 2017

    Zaft thread starter macrumors 68040

    Zaft

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    Jun 16, 2009
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    #9
    Yup I'm checking on mac.
     
  10. Zaft thread starter macrumors 68040

    Zaft

    Joined:
    Jun 16, 2009
    Location:
    Brooklyn, NY
    #10
    looks like you are right. Now the capacity has jumped to 1659.
     
  11. Applejuiced macrumors Westmere

    Applejuiced

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    Location:
    At the iPhone hacks section.
    #11
    Any similar program or coconut battery for windows?
     
  12. Zaft thread starter macrumors 68040

    Zaft

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    Jun 16, 2009
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    Brooklyn, NY
    #12
    I have not found anyway.
     
  13. Applejuiced macrumors Westmere

    Applejuiced

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    At the iPhone hacks section.
    #13
    Thank you.
    I didn't think so either.
     
  14. C DM macrumors Westmere

    Joined:
    Oct 17, 2011
    #14
    Someone mentioned iBackupBot offers some battery information capabilities, but I'm not quite sure how good those are (assuming that functionality is actually even there to begin with).
     
  15. Applejuiced macrumors Westmere

    Applejuiced

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    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #15
    Thank you.
    I'll check it out.
     
  16. Mlrollin91 macrumors G5

    Mlrollin91

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    #16
    iBackupBot doesn't give the real time mAh number, temperature or charging rate, but it will give an estimated mAh and cycle count. So its better than nothing but not as accurate.
     
  17. SoYoung macrumors 6502a

    Joined:
    Jul 3, 2015
    #17
    I'm a little worried with my 6s+ battery health. It says I'm at 84% of the original capacity and I have just 181 cycles. My air 2 is at 91% and at 151 cycles.
     
  18. Mlrollin91 macrumors G5

    Mlrollin91

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    #18
    Both of those are rather low for the cycle count. iPhone is rated for 80% after 500 cycles and iPad Air 2 is 80% after 1000 cycles. What is your charging behavior? Do you let the device die completely frequently? Lastly, do you expose it to extreme cold or use the phone when it begins to overheat?
     
  19. JackieInCo, Apr 9, 2017
    Last edited: Apr 9, 2017

    JackieInCo Suspended

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    Jul 18, 2013
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    Colorado
    #19
    My 5S has 328 cycles and a capacity of 83%.
    My 6S has 127 cycles and a capacity of 94.6%
    My 6+ has 211 cycles and a capacity of 94.7%
    My 6S+ has 116 cycles with a capacity of 90.4%.
    My iPad Mini 2 has 138 cycles with a capacity of 84.4%. Rebooting the iPad brought that up to 89.9%. Apparently the OS can report false readings to coconut battery. Now it shows 92.5%.


    Apple won't replace the battery as defective because it's still above the 80% capacity that they promise.
     
  20. SoYoung, Apr 9, 2017
    Last edited: Apr 9, 2017

    SoYoung macrumors 6502a

    Joined:
    Jul 3, 2015
    #20
    I rarely let the whole battery go down and shut by itself. Usually I just charge my phone at night and my battery can be at 40-60% at that time. I read a lot of articles saying these days battery can be plugged almost anytime so I trusted that.

    Usually my phone is on my pocket, and in moderate temperature. My phone is rarely really hot but when it was, It was because I download or upload something at the same time I do something else.

    I dont know what is the problem, last week I let the battery die since a very long time, and it did turn off at 1% so the syncing % accuracy is still good. My iPhone 6+ was on 91% of his original capacity after 210-220 cycles...
     
  21. JackieInCo Suspended

    Joined:
    Jul 18, 2013
    Location:
    Colorado
    #21
    My iPad Mini 2 has 138 cycles with a capacity of 84.4%. Rebooting the iPad brought that up to 89.9%. Apparently the OS can report false readings to coconut battery. Now it shows 92.5%.

    I've had the same thing happen to my iPhones that I posted above. Rebooting can affect the battery %.
     
  22. Mlrollin91 macrumors G5

    Mlrollin91

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    #22
    Okay, so it sounds like you are using the battery, which batteries like. If you constantly keep it below 20% or constantly keep it above 80% the battery is over worked, or not getting worked enough. When batteries don't get used, they lose health. It is possible that the batteries are 'duds'. The iPad one is okay for now, the 6sPlus is starting to get a little low. Is it still under warranty?

    For the record, my Air 2 is at 96% health after 100 cycles. So also a little low. My launch day 7Plus was about 180 cycles and still at 100% capacity, my replacement 7Plus is at 30 cycles and well over 100% capacity. At some points, its just luck on the battery.

    If you start to notice problems with the 6sPlus contact Apple. If the device is under 2 years old (which it is) and you bought it was a credit card, most credit cards offer free extended warranty. Once Apple deems the battery needs to be replaced, you pay Apple the $79 and your CC company will reimburse you.
    --- Post Merged, Apr 9, 2017 ---
    Its not iOS giving false readings, its the fact that batteries are always "on" so their readings are never held at a constant. The mAh of a battery jumps thousands of times a day. Usually a 2-5% span is normal. But under heavy load, heat, charging, discharging and so on, each can have its own affect on the battery and the current mAh at the time of the reading.

    What you are thinking of is the iOS battery percent meter, not the battery health itself.
     
  23. JackieInCo Suspended

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    Jul 18, 2013
    Location:
    Colorado
    #23
    No, I was looking at capacity in coconut battery. I know the difference between the two.
     
  24. Mlrollin91 macrumors G5

    Mlrollin91

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    Nov 20, 2008
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    Ventura County
    #24
    Okay, but what I am getting at is a simple restart has absolutely nothing to do with the battery health itself. That is a hardware reading and is not tied to iOS. iOS is not reporting the battery health, but the battery hardware itself is.
     
  25. Newtons Apple macrumors Core

    Newtons Apple

    Joined:
    Mar 12, 2014
    Location:
    Jacksonville, Florida
    #25
    Same for me. I got greatly differing readings from Coconut several years ago and do not think it is very accurate.
     

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