93% battery capacity on MBP after 75 cycles

Discussion in 'MacBook Pro' started by Flopstar, Sep 29, 2018.

  1. Flopstar macrumors member

    Flopstar

    Joined:
    Sep 17, 2017
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    Meh, I don't know.
    #1
    This is embarrassingly bad :eek:
     

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  2. Rocko99991 macrumors 6502a

    Rocko99991

    Joined:
    Jul 25, 2017
    #2
    In 205 cycles you will get warnings to replace battery-under 80%. Not good.
     
  3. SDColorado, Sep 29, 2018
    Last edited: Sep 29, 2018

    SDColorado Contributor

    SDColorado

    Joined:
    Nov 6, 2011
    Location:
    Highlands Ranch, CO
    #3
    I wonder if Apple could help improve this by adding a battery charge threshold setting? Some manufacturers include settings where you can indicate that the laptop doesn't begin to charge until it reaches X% (such as 60%) and will stop charging at a max of X% (such as 98%). Supposedly this helps reduce the amount of charging cycles, but I am not sure how significant the impact is.

    With Apple batteries being glued in and not easily replaceable, maybe any reduction in cycles is a big positive.
     
  4. iMacDragon macrumors 68000

    iMacDragon

    Joined:
    Oct 18, 2008
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    UK
    #4
    Doesn't necessarily follow.. degredation is not necessarily linear, though this performance does seem quite poor.
     
  5. upandown macrumors 6502a

    Joined:
    Apr 10, 2017
    #5
    Battery wear is not linear. My 2012 got to around that health pretty quickly and never moved from there for about 5 years. Never had a problem with battery life. Try not to think about it.
     
  6. TooDarkPark Suspended

    TooDarkPark

    Joined:
    Nov 23, 2017
    #6
    My 2012 13" non retina MBP was purchased new at BestBuy in July of 2015. It has 28 cycles and it is at 90.7 capacity. It's been that way since about 15 cycles. I use it on battery about once a month just to use the battery.
     
  7. Flopstar thread starter macrumors member

    Flopstar

    Joined:
    Sep 17, 2017
    Location:
    Meh, I don't know.
    #7
    Update: It goes back up to 95% and down to 94% sometimes too. As long as it doesn't start falling in a linear way again, I think it will be fine :)
     
  8. NT1440 macrumors G5

    NT1440

    Joined:
    May 18, 2008
    #8
    Battery degradation is NOT a linear process.
     
  9. LogicalApex macrumors 6502

    Joined:
    Nov 13, 2015
    #9
    People look at these numbers way too much. I'd say relax and ignore the battery condition unless you're experiencing problems or the OS alerts you that the condition has degraded seriously.
     
  10. StellarVixen, Oct 1, 2018
    Last edited: Oct 1, 2018

    StellarVixen macrumors 68000

    StellarVixen

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    Earth
    #10
    It is not everything black and white with capacity measuring methods, and false/off readings are possible.

    I'd say do not panic.
     
  11. keiji11 macrumors member

    Joined:
    Aug 25, 2018
    #11
    i've got the 13 macbook pro 2015 50 cycle and captivity is 90%. I don't see anything wrong and still last for 8-9hours
     
  12. jerryk macrumors 601

    Joined:
    Nov 3, 2011
    Location:
    SF Bay Area
    #12
    battery charge state is an estimate made by watching current flows or voltage. This is effected by load, temps, and other environment conditions. There is no way to know exactly how much charge a battery has and how long that will last. Better to not get hung up on 3-4% differences.
     
  13. AppleHaterLover macrumors 68000

    Joined:
    Jun 15, 2018
    #13
    Batteries degrade over time, regardless of cycles.

    Every now and then we'll see a thread with someone's 2015 Mac has 30 cycles because it was always on the charger and the battery has degraded to 90%. No ****.

    If you store a battery, it will degrade over time.
    If you use a battery, it will degrade over time.
    If you only use your Mac on a charger, it's even worse, because you're "storing" a battery at full capacity in 40-50C heat.
    If you use it every now and then, it will degrade but a bit less.

    Batteries are consumables.
     
  14. Ma2k5 macrumors 68020

    Ma2k5

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    London
    #14
    What did it start as - some start at less than or even higher than 100% - there is usually an acceptable tolerance.
     
  15. rmoliv macrumors 6502a

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    Dec 20, 2017
    Location:
    Lisbon, Portugal
    #15
    What app or whatever did you use to get that info on your battery? Thanks.
     
  16. NT1440 macrumors G5

    NT1440

    Joined:
    May 18, 2008
    #16
    That would be Coconut Battery, it's great. You can get your device's battery stats AND the battery stats of any iOS devices that are plugged into that mac.
     
  17. BigMcGuire Contributor

    BigMcGuire

    Joined:
    Jan 10, 2012
    Location:
    California
    #17
    Why not give the full picture? Above the Design Capacity which is static, is the Full Charge Capacity bar as well as current charge - which is important when measuring.
     
  18. ducksandtails macrumors newbie

    Joined:
    Oct 2, 2018
    #18
    What's going on with MBP batteries? Mine died suddenly today with only 283 cycles!
     
  19. oldmacs macrumors 601

    oldmacs

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    Sep 14, 2010
    Location:
    Australia
    #19
    283 :O

    I've got 1627 cycles on a Non Retina 2012 Pro and 94 percent health :O

    Screen Shot 2018-10-04 at 1.13.12 am.png
     
  20. SDColorado Contributor

    SDColorado

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    Nov 6, 2011
    Location:
    Highlands Ranch, CO
    #20
    Nice! You have that thing on a laptop hamster wheel? That’s a well used and well aged battery :)
     
  21. vaugha, Oct 4, 2018
    Last edited: Oct 4, 2018

    vaugha macrumors 6502

    Joined:
    Nov 3, 2011
    #21
    My > 6 year old rmbp got 192 cycles and 90% capacity. It's plugged in 95% of the time.
    [​IMG]
     
  22. puggles macrumors regular

    Joined:
    Jun 9, 2010
    #22
    Mine was about that too but it has slowed down a lot. I've loss less than a percent in the past year.

    [​IMG]
     
  23. christarp macrumors 6502

    christarp

    Joined:
    Oct 29, 2013
    #23
    Honestly mine looked like it was going to be quite low if it followed trends much like OP's did. After a year I was around 95% or so. Just over 5 years now and my battery is at 86% capacity and with 675 charge cycles. It's not a linear process and you'll probably be fine.
     

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