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  1. #1


    Member Since
    Jan 02, 2011
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    Hartlepool, UK.
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    MBP Overcharging?
    Is this normal? I've just recalibrated the battery and the result is the same...

    Thanks, Mike
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  2. #2


    Member Since
    Sep 09, 2009
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    Down Under :D
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    Back to my old 2.2GHz C2D MB after selling my MBP and wondering what my next Mac will be :)
    Mine's better



    Seriously though, no it's not overcharging.
    Some new batteries come with a little more, and some come with a little less charge.

    Be happy that you got one of the good ones

  3. #3

    pigoo3's Avatar
    Member Since
    May 20, 2008
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    34,497
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    2011 13" MBP 2.3ghz, 8gig ram, OS 10.8.5
    Quote Originally Posted by MikeyBe View Post
    Is this normal? I've just recalibrated the battery and the result is the same...

    Thanks, Mike
    It's all in the math. Like "6string" mentioned...all batteries are not the same. When new...some batteries have a slightly higher amount of mAh's & some have slightly less. In "6string's" example...his battery has a design capacity specification of 6900mAh...but his battery has a current actual capacity of 7020mAh (120mAh higher than the design spec.).

    It's possible that a battery has a 100% capacity specification of 6900mAh...but batteries from the factory may actually range from 6750 to 7050...so +/- 150mAh.

    Now you take the program "Coconut Battery". It has some sort of table in it's program that says "6string's" battery at 100% charge is supposed to have 6900mAh...but in reality (when the battery is fully charged) it has 7020mAh. So if you do the math...that works out to be 101% of the original design specification.

    HTH,

    - Nick

    p.s. Technically speaking...a battery with a design capacity of 6900mAh...but an actual 100% charged capacity of 7020...is at 101.739% (almost 102% if you round it up)!
    - Too many "beachballs", read this: Beachballs
    - Computer seems slower than it used to? Read this for some slow computer tips: Speedup
    - Almost full hard drive? Some solutions. Out of Space
    - Apple Battery Info. Battery

  4. #4


    Member Since
    Sep 09, 2009
    Location
    Down Under :D
    Posts
    5,484
    Specs:
    Back to my old 2.2GHz C2D MB after selling my MBP and wondering what my next Mac will be :)
    Couldn't have said it better

    Also, now that you know, forget about coconut battery, smc fan control, and any other junkware that you may do your head in over, as this will only take away from you enjoying your Mac as it was designed for you to do

  5. #5

    pigoo3's Avatar
    Member Since
    May 20, 2008
    Location
    U.S.
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    Specs:
    2011 13" MBP 2.3ghz, 8gig ram, OS 10.8.5
    Quote Originally Posted by 6string View Post
    Couldn't have said it better
    I think you did say it better (short & sweet) when you said..."Some new batteries come with a little more, and some come with a little less charge."

    I just gave the long version!

    - Nick
    - Too many "beachballs", read this: Beachballs
    - Computer seems slower than it used to? Read this for some slow computer tips: Speedup
    - Almost full hard drive? Some solutions. Out of Space
    - Apple Battery Info. Battery

  6. #6


    Member Since
    Jan 02, 2011
    Location
    Hartlepool, UK.
    Posts
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    Thanks guys. I'll cross it off my list of things to worry about...

    Mike

  7. #7

    pigoo3's Avatar
    Member Since
    May 20, 2008
    Location
    U.S.
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    34,497
    Specs:
    2011 13" MBP 2.3ghz, 8gig ram, OS 10.8.5
    Quote Originally Posted by MikeyBe View Post
    Thanks guys. I'll cross it off my list of things to worry about...

    Mike
    Hopefully that list is not too long!

    - Nick
    - Too many "beachballs", read this: Beachballs
    - Computer seems slower than it used to? Read this for some slow computer tips: Speedup
    - Almost full hard drive? Some solutions. Out of Space
    - Apple Battery Info. Battery

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