"no battery detected"??? 12'' PB

Discussion in 'Mac Pro' started by blueberryHG, Jan 19, 2006.

  1. blueberryHG macrumors newbie

    Joined:
    Jan 19, 2006
    #1
    I can't find any info about this on the internet, does anyone have any problems with their computer not recognizing the battery when the computer is running off the battery?
     
  2. mad jew Moderator emeritus

    mad jew

    Joined:
    Apr 3, 2004
    Location:
    Adelaide, Australia
    #2
    Weirdness. :confused:

    Assuming it's plugged in properly and it's not a loose connection, try resetting the PMU. :)
     
  3. tdhurst macrumors 68040

    tdhurst

    Joined:
    Dec 27, 2003
    Location:
    Portland, OR
    #3
    Hmm...

    Totally!

    It's either when:

    1. Battery is not attached properly.
    2. Something is wrong with the computer (hardware).
    3. Something is wrong with the battery (hardware).
     
  4. ortuno2k macrumors 6502a

    Joined:
    Nov 4, 2005
    Location:
    Hollywood, FL
    #4
    I'd hate to speculate but this happened to me when I received my 15" PB.

    As soon as I plugged it for the first time, the light is supposed to turn amber, meaning it's charging, right? Well, it was green. On the battery icon, it would read "Calculating" for hours. If I unplugged the power cord, it'd turn off right away.
    The battery didn't "exist" or charge at all.
    It was a DOA battery. A quick call to Apple and a replacement was at my doors step in 48 hours.

    My suggestion? Check the little button on the battery. Press it, the lights should light up in green. If they don't and you've been charging the battery, then it's totally dead.

    Call Apple.
     
  5. blueberryHG thread starter macrumors newbie

    Joined:
    Jan 19, 2006
    #5
    Well I dont have the original wall charger for my powerbook that would show that amber light. When I have the computer plugged into the wall it will sometimes show that it is calculating the time, but it wont finish. Sometimes I just get a symbol that says no battery is recognized, however I can still use the battery to power my computer.

    I don't have my computer with me right now, but I dont know what button you're talking about on the battery. However, the green lights on the outside of the battery display green.... ahh! I shall call apple when I get home from school.
     
  6. blueberryHG thread starter macrumors newbie

    Joined:
    Jan 19, 2006
    #6
    I pushed the button and the battery is charged! argh. however, when my computer screen goes blank the computer makes a quiet ticking noise.. :eek:
     
  7. mad jew Moderator emeritus

    mad jew

    Joined:
    Apr 3, 2004
    Location:
    Adelaide, Australia
    #7
    Does it behave completely normally when plugged in because a ticking computer generally means a failing hard drive. Hopefully I'm going down the wrong track and to be honest, I don't think it's the hard drive, but back everything up all the same.
     
  8. blueberryHG thread starter macrumors newbie

    Joined:
    Jan 19, 2006
    #8

    I just put in a new hard drive. The computer does not behave normally. It doesnt recognize battery and it will eventually turn to a blank screen and begin to quietly tick. I'm taking my computer to the MacSpecialists today because an hour phone call with applecare led me to talk to them. Apparently the DC adapter can be bad which is causing problems because I have been using a charger that is 50watts instead of the 45watt charger that it is supposed to have.. does that sound like a poss?
     
  9. mad jew Moderator emeritus

    mad jew

    Joined:
    Apr 3, 2004
    Location:
    Adelaide, Australia
    #9
    Your adaptor is too powerful? That generally shouldn't be too much of a problem but I guess it could mess up the power management. I'd be interested to hear what the MacSpecialists say. :)
     
  10. Laser47 macrumors 6502a

    Laser47

    Joined:
    Jan 8, 2004
    Location:
    Maryland
    #10
    I dont think that should be a problem since apple sells 65watt adapters for both the ibook and powerbooks.

    Wow, as I was looking for the adapter on apple.com they also list the power adapter for the macbookpro 85watts? wow
     
  11. mad jew Moderator emeritus

    mad jew

    Joined:
    Apr 3, 2004
    Location:
    Adelaide, Australia
    #11

    True, but it's generally all about getting the appropriate amount of power for the battery (actually the PMU).
     
  12. blueberryHG thread starter macrumors newbie

    Joined:
    Jan 19, 2006
    #12
    Applecare told me i need to get a 45watt charger. At the apple store the guy told me that they dont sell a 45W charger but rather the 65W charger "downgrades" itself to appropriately supply power to the computer. marketing scheme? I have no idea.. dont know much about electricity.

    I went to the MacSpecialists and they told me that since no technician was in it would take up to two weeks for someone to look at my computer. I didnt leave my computer there, but I hope to return tonite. (forgot the damned machine on the way to work which would save me a lot of time!!)

    So.. we'll see.. no one seems to be interested or know nothing about this issue I have.

    I talked to applecare for almost an hour and they had nothin' to offer other than resetting the PMU.
     

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