Does your battery charge past 98%

Discussion in 'MacBook Pro' started by toydriver00, Dec 5, 2006.

  1. toydriver00 macrumors newbie

    Joined:
    Nov 26, 2006
    #1
    I have replaced my battery and still I have a problem with my Macbook not charging the battery past 98%. Does anyone else have this problem or is it normal?

    Thanks
     
  2. PillarFan1 macrumors member

    Joined:
    Oct 3, 2006
    #2
    mine does that sometimes, like right now its been stuck on 97%, usually i just unplug the power adapter for a few minutes then plug it back in
     
  3. CDailey macrumors regular

    Joined:
    Nov 13, 2006
    Location:
    Florida
    #3
    Sometimes mine will only display 99%. Usually if I unplug the magsafe, then plug it back in, it will display 100%.

    edit: this is on a MBP
     
  4. Silentwave macrumors 68000

    Joined:
    May 26, 2006
    Location:
    Gainesville, FL
    #4
    by design they won't charge unless it dips below 95%, but you should get charge to 100%...
     
  5. toydriver00 thread starter macrumors newbie

    Joined:
    Nov 26, 2006
    #5
    Mine charges to 100%, then I shut it down, turn it back on the next day and it is at 98%. That is with the Magsafe connector plugged in.
     
  6. bousozoku Moderator emeritus

    Joined:
    Jun 25, 2002
    Location:
    Gone but not forgotten.
    #6
    I've had it charge to 100 % occasionally but not that often. It's usually at 98 %, even after it's "fully" charged.

    After almost 2 years, you'd think the thing would work as I expect but that's not the case.
     

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  7. sycho macrumors 6502a

    sycho

    Joined:
    Oct 7, 2006
    #7
    How do you only have that little charges? Mine MacBook is a month old and is just shy of that.:confused:
     
  8. bousozoku Moderator emeritus

    Joined:
    Jun 25, 2002
    Location:
    Gone but not forgotten.
    #8
    I haven't been away from home enough or there haven't been enough hurricanes. I really needed it in the 2004 hurricane season since I went around 5 days at a time, 3 times without power.

    Even when I take it out when I'm photographing something, I don't always pull it out to edit just then for fear that someone will try to steal it while I'm shooting again.
     
  9. ChickenSwartz macrumors 6502a

    Joined:
    Jul 27, 2006
    #9
    I might not know but I think a calibration might fix the problem.
     
  10. lamina macrumors 68000

    lamina

    Joined:
    Mar 9, 2006
    Location:
    From Canada, living in Seoul
    #10
    That's normal. It's not good for a battery to fully charge to 100% every time, so the OS will stop it from charging to 100%, usually anywhere between 95-100%.
     
  11. Jiddick ExRex macrumors 65816

    Jiddick ExRex

    Joined:
    May 14, 2006
    Location:
    Roskilde, DK
    #11
    My ibook battery does that excact same thing and a calibration doesn't help it, it's just a waste of a battery cycle. Stop thinking about it, if it works, it ain't broken.
     
  12. iBookG4user macrumors 604

    iBookG4user

    Joined:
    Jun 27, 2006
    Location:
    Seattle, WA
  13. Aniej macrumors 68000

    Aniej

    Joined:
    Oct 17, 2006
    #13
    You are getting enough juice to transfer pictures to your comp and make some edits over the course of 5 days? That is insane; you have a magic battery. How do you keep it going so long?

    (n.b. this question is posed assuming a new, low cycle count battery or close to it)
     
  14. deadpixels macrumors 6502a

    deadpixels

    Joined:
    Oct 30, 2006
    #14
    here's what apple says about it :D and for those too lazy to click, here ya go :D
     
  15. Erendiox macrumors 6502a

    Erendiox

    Joined:
    Oct 15, 2004
    Location:
    Brooklyn NY
    #15
    I'm pretty sure that the 98% is just a minor calibration error. It's not that you're not charging you battery to its maximum, it's just that the sensors are reading it as 98% full. It tends to happen when there's a large space of time where you don't drain your battery. A calibration will surely fix this problem if it bothers you. Otherwise, it's really nothing to worry about.
     
  16. phungy macrumors 68020

    phungy

    Joined:
    Dec 5, 2006
    Location:
    FL/NY/TX
    #16
    So this only pertains to the MBP and not the MB?
     
  17. CDailey macrumors regular

    Joined:
    Nov 13, 2006
    Location:
    Florida
  18. deadpixels macrumors 6502a

    deadpixels

    Joined:
    Oct 30, 2006
    #18
    you're very wellcome :D
     
  19. rstorm macrumors regular

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    Oct 26, 2006
    Location:
    Grand Rapids, MI
    #19
    Sometimes it stalls at 99% but most of the time it does go to 100%.
     
  20. mfInc macrumors member

    Joined:
    Nov 19, 2006
    Location:
    Toronto / Hamilton, ON (CAN)
    #20

    Attached Files:

  21. fustercluck macrumors member

    Joined:
    Oct 29, 2006
    #21
    Quick question:

    What is the *preferred* behavior regarding battery usage?

    If the MBP is used at home - if you have access to an electrical outlet 24/7, is it better to use that as much as possible rather than battery power to reduce the amount of your recharge cycles? Or is it better to use your battery frequently? I'm just not sure and I haven't seen recommended usage in terms of when to use battery vs. when to use A/C.
     
  22. deadpixels macrumors 6502a

    deadpixels

    Joined:
    Oct 30, 2006
    #22
    i think the rule is that you can keep your laptop plugged to the wall outlet but you should do a charge - discharge cycle at least once a month :D
     
  23. Cybergypsy macrumors 68040

    Cybergypsy

    Joined:
    May 16, 2006
    Location:
    Central Florida!
    #24
    Had Apple replace mine...was doing the same thing!
     
  24. mfInc macrumors member

    Joined:
    Nov 19, 2006
    Location:
    Toronto / Hamilton, ON (CAN)
    #25
    Where do I contact to get it replaced? This would be my first call to Apple for anything :)
     

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