So how many "re-calibrated" after 10.2.8?

Discussion in 'Macintosh Computers' started by coolbreeze, Sep 23, 2003.

  1. macrumors 65816

    Joined:
    Jan 20, 2003
    Location:
    UT
    #1
    I know I did, after seeing my battery life go from 3.5 hours to 1.5 hours. Not sure if "re-calibrating" my "not brand-new" battery was the right thing to do?

    Just wondering. I feel a bit jaded by 10.2.8 so far. Guess we should wait a week before updating, like the Apple rep told a poster.:rolleyes:
     
  2. macrumors 6502a

    hugemullens

    Joined:
    Dec 15, 2002
    Location:
    Michigan
    #2
    My battery life went from 3 1/2 hours to 2 hours. How do i recalabrate?? i definetly need to, or start talking new battery from apple.

    EDIT: i did what apple said and drained into force sleep, then fully recharge, didnt help. :(
     
  3. thread starter macrumors 65816

    Joined:
    Jan 20, 2003
    Location:
    UT
    #3
    You did a full drain and recharge that quick? Well, I am still in the process. Even if this works, it shouldn't be a requirement. Or am I wrong?
     
  4. macrumors 6502a

    hugemullens

    Joined:
    Dec 15, 2002
    Location:
    Michigan
    #4
    I did it as soon as i realized i had bad battery life this morning, i am draining it again, i just didnt realize that qualified as recalabrating. I even reset the pmu and nothing as far as success.
     
  5. macrumors 68000

    Daveman Deluxe

    Joined:
    Jun 17, 2003
    Location:
    Corvallis, Oregon
    #5
    Weird, I haven't had any problems with battery life. I played Neverwinter Nights for about an hour this evening and went from about 80% to 30%, which isn't bad to begin with.

    Still, in the five months that I've had this particular battery, my battery life seems to have gone from four hours to three and a half. Perhaps that's just because I spend less time on battery with the screen dimmed as I take notes in dimly-lit lecture halls. Guess I'll find out, school starts again in a week.
     
  6. macrumors 68020

    Horrortaxi

    Joined:
    Jul 6, 2003
    Location:
    Los Angeles
    #6
    YIPES!!! After reading this I pulled my iBook off the charger and it says only 1:30 of charge. It's usually well over 3 hours. Not good. I'll run it down and reset the PMU but it does't sound like that'll do anything based on other people's experience. Now what?
     
  7. macrumors 6502

    Joined:
    Jun 22, 2003
    Location:
    Baltimore
    #7
    I drained my battery to sleep, recharged, and still have awful battery life. Fortunately I can avoid unplugging my TiBook for the near future, but sooner or later Apple needs to release a fix for this. My battery life was cut by over an hour.
     
  8. macrumors 68000

    crees!

    Joined:
    Jun 14, 2003
    Location:
    MD/VA/DC
    #8
    Maybe a title will help

    OS just calculates it wrong

    From what I've heard other people saying is that it is OSX that is not calculating the battery life correctly. You should still have the same amount of charge you did before the 10.2.8.
     
  9. macrumors 6502

    Joined:
    Jul 18, 2002
    Location:
    Houston, TX
    #9
    after installing my update on my 900mhz 14 inch iBook it said 2 hrs and i drained the battery and charged and it is no back up to over 4 hrs normally.
     
  10. macrumors 6502a

    Joined:
    Jan 5, 2002
    Location:
    CA
    #10
    OS just calculates it wrong

    After the update my battery life went down I thought - it reports just 2:00, but I get about 3:30 hrs still from my Ti550 Mhz. The calculations are just wrong, as far as I can tell.
     
  11. macrumors 6502a

    hugemullens

    Joined:
    Dec 15, 2002
    Location:
    Michigan
    #11
    I'm down slightly still, i got 2:50 when normally in the same situation i would get around 3:15, but never once did the powerbook show over 1:54 remaining, so the OS has issues, and it also ran for 12 minutes on 0%.
     
  12. macrumors 6502a

    Joined:
    Jul 22, 2002
    Location:
    Tacoma, WA
    #12
    Although the calculations are somewhat wrong, battery life is down. My TI 667 DVI says 1:30 left at 100% charge. I get a little less than 2 hours off of that. I don't know how people can say that's normal when 2 days ago I got three easy.

    BEN
     
  13. macrumors 6502

    Joined:
    Sep 22, 2003
    Location:
    Detroit, Michigan
    #13
    Switch

    Switch to the percentage view. My experience is that it is now correct, and a great way to calculate the remaining battery. The time just isn't working like it should.
     
  14. macrumors regular

    Joined:
    Jul 28, 2003
    Location:
    San Francisco, CA
    #14
    Re: Switch

    Indeed. My Powerbook 12" says 1:54 after full charge - but the percentage (percentage over time...) seems to be working better.
     
  15. macrumors regular

    Joined:
    Mar 21, 2003
    #15
    I didn't download the 10.2.8 but after reading these posts, I checked my battery timer and I have the same problem!!! Full charge used to show 4 hours on my PB17. Now I am only getting a reading of 2 hours at "100%" charge.

    Not good.
     
  16. macrumors 6502a

    jimthorn

    Joined:
    Apr 24, 2003
    Location:
    Huntington Beach, CA, USA
    #16
    I've been running OS X 10.2.8 for a couple of days on my iBook 900MHz. No problems, and I show about 3.5 hours when I go to battery.

    Do you think it matters if you're running on battery (i.e. not fully charged) when you install the OS update?
     
  17. macrumors regular

    Joined:
    Jan 15, 2001
    Location:
    Directly under the sun....now.
    #17
    Pismo and Battery Life...

    I've got a Pismo and I've drained the battery, recharged it, turned it on the next morning and I've getting 1.30mins on my battery life do I have to drain it again?
     
  18. macrumors 68020

    Horrortaxi

    Joined:
    Jul 6, 2003
    Location:
    Los Angeles
    #18
    I reset the PMU and have run the iBook until it goes to sleep twice. Each time the time reported goes a little higher. The battery still has decent life but the reporting is definitely screwey. It will go up and down frequently--28 minutes, 27 minutes, 34 minutes, 33 minutes, etc.
     
  19. macrumors 603

    shadowfax

    Joined:
    Sep 6, 2002
    Location:
    Houston, TX
    #19
    my ghz tibook is definitely doing the same thing. when i first did the update, it would say 1:20 remaining. after one recalibration, it's now saying 1:40 remaining. i am thinking i will do that again. but even with the 1:20 calculation, i still got 2.5+ hours out of it, compared to my usual ~3.
     

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