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  1. #1
    MacBook Battery Logevity
    Zoolook's Avatar
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    Sep 24, 2006
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    Brooklyn, New York
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    Specs:
    15" MacBook Pro, i7 2.66Ghz, 8GB RAM, 512GB SSD; iPad 3, iPhone 5
    MacBook Battery Logevity
    Despite looking after my MacBook like the Crown Jewels, the battery logevity seems to lower than my expectations. After 56 cycles (on a 6 month old Mac) the capacity is down to just over 4,200 mAh (from the 5200 mAh when new, that's about 82%). My wife's MacBook (bought 2 weeks earlier) has 10 more cycles but 4,900 mAh capacity left. Maybe I was unlucky or maybe I abused my battery somehow. Oh and BTW, I have calibrated recently... it actually made things worse (losing 22 mAh).

    Interestingly, I have seen a few 3rd party websites start selling MacBook batteries, but ONLY for the MacBook white! How unfair is that?

    Anyone else had issues with battery longevity? I did take my machine to the shop about 2 weeks after buying it askign them to check the battery was ok, because it already lost 200 mAh and they said that was normal and it would go up and down (which it had) but it has mainly gone down... :bandage:
    In the land of the blind, the one-eyed man is stoned to death.
    - Joan D. Vinge


  2. #2
    MacBook Battery Logevity
    Stretch's Avatar
    Member Since
    Jan 13, 2007
    Location
    Central New York
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    4,773
    Specs:
    15in i7 MacBook Pro, 8GB RAM, 120GB SSD, 500GB HD
    How often have you calibrated it? Its recommended to do it atleast monthly.
    Blog and Photo Gallery: http://philolin.me/

    Currently running OS X 10.10

  3. #3
    MacBook Battery Logevity
    Zoolook's Avatar
    Member Since
    Sep 24, 2006
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    15" MacBook Pro, i7 2.66Ghz, 8GB RAM, 512GB SSD; iPad 3, iPhone 5
    Quote Originally Posted by StretchR View Post
    How often have you calibrated it? Its recommended to do it atleast monthly.
    Only once since I got it. However my wife's has been allowed to die several times, not deliberately but just because she leaves it lying around asleep and it dies. It seems that her carelessness has actually benifited the machine! :mac:
    In the land of the blind, the one-eyed man is stoned to death.
    - Joan D. Vinge


  4. #4
    MacBook Battery Logevity
    Stretch's Avatar
    Member Since
    Jan 13, 2007
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    Central New York
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    Specs:
    15in i7 MacBook Pro, 8GB RAM, 120GB SSD, 500GB HD
    I would cycle yours a few times to see if that helps.
    Blog and Photo Gallery: http://philolin.me/

    Currently running OS X 10.10

  5. #5
    MacBook Battery Logevity

    Member Since
    Jul 22, 2003
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    Hamilton College
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    Specs:
    20" iMac C2D 2.16ghz, 13" MacBook 2.0ghz, 60gb iPod vid, 1gb nano
    I have 72 cycles over 9 months on my macbook just over 4900 mAh
    Don't forget to use the new User Reputation System

  6. #6
    MacBook Battery Logevity
    Zoolook's Avatar
    Member Since
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    15" MacBook Pro, i7 2.66Ghz, 8GB RAM, 512GB SSD; iPad 3, iPhone 5
    Quote Originally Posted by StretchR View Post
    I would cycle yours a few times to see if that helps.
    Quote Originally Posted by trpnmonkey41 View Post
    I have 72 cycles over 9 months on my macbook just over 4900 mAh
    OK, I'll do it again tonight and post the results. So to do this properly, you run it right down to sleep mode and then let it dies completely before charging?
    In the land of the blind, the one-eyed man is stoned to death.
    - Joan D. Vinge


  7. #7
    MacBook Battery Logevity
    Stretch's Avatar
    Member Since
    Jan 13, 2007
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    Central New York
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    Specs:
    15in i7 MacBook Pro, 8GB RAM, 120GB SSD, 500GB HD
    let it run until the warning comes up that it is going to sleep, after it goes to sleep, let it charge back up.
    Blog and Photo Gallery: http://philolin.me/

    Currently running OS X 10.10

  8. #8
    MacBook Battery Logevity
    Zoolook's Avatar
    Member Since
    Sep 24, 2006
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    Specs:
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    Quote Originally Posted by StretchR View Post
    let it run until the warning comes up that it is going to sleep, after it goes to sleep, let it charge back up.
    Well back home now and on the trusty Mac. It now has 4,186 mAh as the max charge according to Coconut, so it's running down now as we speak.
    In the land of the blind, the one-eyed man is stoned to death.
    - Joan D. Vinge


  9. #9
    MacBook Battery Logevity
    plusfortyfour's Avatar
    Member Since
    Dec 15, 2006
    Location
    Dartmouth, NS, Canada
    Posts
    179
    Specs:
    White Macbook Core 2 Duo 2.0 GHz/1GB RAM/250 GB HDD
    This is weird...

    CoconutBattery is telling me that my original capacity was 5200 mAh...now it says its nearly 5400 mAh.

    This is after 40 load cycles and my Macbook is 3 months old, but I have only had it since Christmas.

  10. #10
    todd51
    Guest
    I have also noticed mine will gain a percent or two if I just use about 10% of it from a full charge, then charge it again.

    Kinda glad to see you all have more cycles than I do. At first I thought I was cycling it too much but mine is around 6-7 months old and I only have 40 cycles through it.

  11. #11
    MacBook Battery Logevity

    Member Since
    Feb 05, 2007
    Posts
    20
    Specs:
    2.0 GHz/1GB/80GB Macbook Core 2 Duo
    2.0 GHz Macbook
    From Coconutbattery:
    Max Charge=5115mAh
    Current Battery Capacity=5115mAh
    Max Battery Capacity=5200mAh (this seems high for a battery of this physical size)
    Load Cycles=2
    Age=5 weeks (just bought it on 2/2/07 so only 3 days old to me)

  12. #12
    MacBook Battery Logevity
    Zoolook's Avatar
    Member Since
    Sep 24, 2006
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    Specs:
    15" MacBook Pro, i7 2.66Ghz, 8GB RAM, 512GB SSD; iPad 3, iPhone 5
    OK, I did another full cycle and lost 100 mAh so it's now down to 4157 mAh.
    In the land of the blind, the one-eyed man is stoned to death.
    - Joan D. Vinge


  13. #13
    MacBook Battery Logevity
    ToddG's Avatar
    Member Since
    Nov 27, 2006
    Posts
    2,071
    Calibrating doesn't actually put more juice in the battery, it just lets the machine "read" the battery level better.

    Apple advertises 300 cycles.

    coconutBattery 2.5.1 says I've had 68 loadcycles over 3 months, I'm at 5227mAh or 95%.

    Then I unplugged the charger (I'm at 100%), restarted coconut and it reports 5232mAh ... an increase of 0.1%.

    As a rule, I try to keep my computer running at between 40% and 100%. I do the calibration thing once a month, and of course there are times when I run the battery down without meaning to. I'm probably running the computer on average 45-50 hours per week.

  14. #14
    MacBook Battery Logevity

    Member Since
    Dec 28, 2006
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    199
    Specs:
    MacBook CoreDuo 1.25Gb Ram WiFi'd To Airport Extreme!
    how do you guys have 72 cycles in 9 months
    I mean if you use your battery every day that would be like 270 cycles

    do you leave your macbook pluggeed in?

  15. #15
    todd51
    Guest
    I usually keep mine plugged in when I'm working on it, except for when I want to go to the couch or something. When I let it sleep or shut it down, I'll unplug it.

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