Macbook Pro Battery Already Used

Discussion in 'MacBook Pro' started by mikethebigo, Jun 12, 2009.

  1. mikethebigo macrumors 68000

    Joined:
    May 25, 2009
    #1
    Hey, quick question for you guys. I bought a uMBP last night, and the first time I turned it on, iStat stated that my battery's already been through 6 cycles. I know it makes no difference in the long run, but why would that be? Just out of curiosity. I have to assume this is not a returned/refurbished unit since the store just got these systems 2 days ago!
     
  2. r.j.s Moderator emeritus

    r.j.s

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    Mar 7, 2007
    Location:
    Texas
  3. peppernut macrumors newbie

    peppernut

    Joined:
    Jun 12, 2009
    Location:
    London UK
    #3
    macbook pro battery life

    Hmm, I didn't know that the batteries had only so many cycles before dying. I noticed that mine now dies about 30 minutes after you unplug it starting with a full battery. My computer is about a year old, but is under an extended warranty. Do you know if that's covered under the warranty, or is it an expected running expense to replace the battery from time to time?
    Thanks so much,
    peppernut
     
  4. r.j.s Moderator emeritus

    r.j.s

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    #4
    Call Apple and explain it to them ... they might send you a replacement.
     
  5. peppernut macrumors newbie

    peppernut

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    Jun 12, 2009
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    London UK
  6. r.j.s Moderator emeritus

    r.j.s

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    Texas
    #6
    Freakin humid.
     
  7. jgo78 macrumors 6502

    Joined:
    Nov 11, 2008
    #7
    i just bought a new 17" 2.8 last night and installed coconut battery, it said my mac was 5 weeks old (i guess from build date) but had 0 cycles on battery.
     
  8. cababah macrumors 68000

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    Jun 11, 2009
    Location:
    SF Bay Area, CA
    #8
    Mine said it had 2 battery cycles when I first turned it on...I called Apple and they said they would replace it if I wanted for free. I don't think it is an issue since these batteries are supposed to have 3x as many charge cycles but you should be able to get it replaced for your own peace of mind if it bothers you.
     
  9. peppernut macrumors newbie

    peppernut

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    Jun 12, 2009
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    London UK
    #9
    Hot!

    LOL, yep, I used to live in SE TX, worse I'm sure than even Ft Hood. Too bad so sad, I'm lovin' the 60s and 70s here in sunny London! :D
     
  10. peppernut macrumors newbie

    peppernut

    Joined:
    Jun 12, 2009
    Location:
    London UK
    #10
    Battery Replacement

    Yeah, I guess I'll give 'em a call. I just had it in for a new logic board (thank God it was still under warranty) I wish I'd asked then... Thanks r.j.s.
    pn
     
  11. Diode macrumors 68020

    Diode

    Joined:
    Apr 15, 2004
    Location:
    Washington DC
    #11
    What's the capacity according to coconut?

    Mine shows 98% already and shows 2 load cycles.
     
  12. TeeRav1 macrumors newbie

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    Jun 7, 2009
    Location:
    Houston, TX
    #12
    Same here except I have a 13" 2.5.
     
  13. mikethebigo thread starter macrumors 68000

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    May 25, 2009
    #13
    I don't think 6 cycles is anything to make a bother about, I was just wondering how it could have happened. Factory testing makes sense. Here's another weird thing, iStat says the battery's health is only 98%. Again, not a big deal, but do battery health scores change after use or is it really already 2% gone?
     
  14. mikethebigo thread starter macrumors 68000

    Joined:
    May 25, 2009
    #14
    Here's what coconut battery says:

    Current Battery Capacity is 6386 mAh
    Original Battery Capacity is 6500 mAh

    so battery health is at 98%.

    Battery loadcycles is 6, and the age of my mac is 6 weeks.
     
  15. cababah macrumors 68000

    Joined:
    Jun 11, 2009
    Location:
    SF Bay Area, CA
    #15
    Same here...after 2 load cycles mine showed 98% health. I posted it on the Apple discussion forum and people said this is normal. When I charged it up, it went to 99% health and back down to 98% health.

    I don't think it is worth splitting hairs over small issues like this..unless you notice a severe problem, it is nothing to worry about. I would just let it go and enjoy your computer..nothing is perfect.

    It is just weird because one guy said his 13" MBP came with "0" cycles on the battery..you said "6", I said "2." When I called Apple they were kind of puzzled when I asked them if that is normal..seriously we cannot be the only ones. My guess is that most users don't pay attention to the Power management feature and actually know what a battery cycle is or do not actively monitor it like a lot of us do. If it is factory testing, why did they have to cycle mine twice??? or yours 6 times? Seriously, what gives? I would like to get to the bottom of it and find out what is really going on in this whole factory test. Is it random?
     
  16. Lou142 macrumors member

    Joined:
    Jun 9, 2009
    #16
    Battery issues

    Peppernut,

    Just took my macbook pro to the apple store for consultation with a genius concerning my dying battery (I got about 1.5 out of the thing before I purchased a new battery). Apparently, extended warranty applies in certain cases except normal wear and tear - at least that is what I was told and what I read on the apple.com website. I've had my macbook since late 2007 (thought I was going to qualify for a new battery under the advisory apple put out about bad macbook batteries).
     
  17. mikethebigo thread starter macrumors 68000

    Joined:
    May 25, 2009
    #17
    So now, just a few minutes later, I rechecked iStat and my battery health is back up to 100%. Very weird. I guess it does change on the fly.
     
  18. atombu macrumors newbie

    Joined:
    Feb 24, 2009
    #18
    it got my UMBP17 on april.
    coconut battery said my UMBP17 is 3 months old,
    but actually my UMBP is only 2 months old..............:confused:

    did anyone know the age is count on battery or the factory making date??
     
  19. r.j.s Moderator emeritus

    r.j.s

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    Mar 7, 2007
    Location:
    Texas
    #19
    It also might be that CB is not really capable of assessing these new batteries accurately yet.
     
  20. ELab2 macrumors newbie

    Joined:
    Jun 9, 2009
    #20
  21. Radioman macrumors regular

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    Oct 3, 2006
    Location:
    UK
    #21
    I was wondering if the new built-in batteries needed the regular cal. :confused:
     
  22. ELab2 macrumors newbie

    Joined:
    Jun 9, 2009
    #22
    hmmm it says (All Models) and it was updated on May 29th, if they keep it up-to-date you would think they would have added that it was unnecessary if it was. The battery is more or less the same anyway I think so I don't see why there would be a difference.
     
  23. mikethebigo thread starter macrumors 68000

    Joined:
    May 25, 2009
    #23
    I'm in the process of wearing it down right now for calibration. Hopefully that will help make my battery meter accurate.
     
  24. joelones macrumors newbie

    Joined:
    Jun 12, 2009
    #24
    Is it normal that coconutbattery reports the following for a new 13" mbp in its 1st cycle?

    Current Battery Capacity is 5509 mAh
    Original Battery Capacity is 5450 mAh

    I see that your capacity 1050 mAh higher.
     
  25. mikethebigo thread starter macrumors 68000

    Joined:
    May 25, 2009
    #25
    The 15" has a larger battery to power the extra fan and larger screen. Actual battery run times should be similar.
     

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