iBook G4 Battery Problem:(

Discussion in 'PowerPC Macs' started by JackT06, Jul 23, 2011.

  1. macrumors 6502

    JackT06

    Joined:
    Jul 24, 2009
    #1
    Hello,

    Awhile, ago i put a post up about my iBook G4 not working, due to the little gears just kept spinning on startup, so i have now fixed that, whohohoho!:D

    So, it's been about a year since my iBook has worked properly, and now i'm having trouble with my battery.

    The iBook seems to be turning off, after only using 25% of the battery. This means the battery has 75% still left. Also, it's giving me no warning that it's going too turn off it just does.

    I looked at Calibrating the battery, but i don't think i can do that as the iBook is not actually using all the battery life.

    Any suggestions?:)
     
  2. macrumors 6502a

    Joined:
    Aug 7, 2008
    Location:
    In OSX Snow Leopard / Godalming UK
    #2
    just calibrate it anyway, and can you run coconut battery on it and see what condition the battery is in
     
  3. thread starter macrumors 6502

    JackT06

    Joined:
    Jul 24, 2009
    #3
    I have done allready, i keep killing the battery, charging it up, and then using it up.

    I ran coconut, and got these results...
     

    Attached Files:

  4. macrumors 6502a

    Joined:
    Aug 7, 2008
    Location:
    In OSX Snow Leopard / Godalming UK
    #4
    looks like you might just have a dead battery, i would just replace it
     
  5. macrumors 68000

    Nameci

    Joined:
    Oct 29, 2010
    Location:
    The Philippines...
    #5
    Yes your batts almost dead, it can only hold about 50% if its cap.
     
  6. thread starter macrumors 6502

    JackT06

    Joined:
    Jul 24, 2009
    #6
    Ah, okay, cheers guys.

    Does anyone know a good place to buy a decent/cheap battery?
     
  7. macrumors 68000

    Nameci

    Joined:
    Oct 29, 2010
    Location:
    The Philippines...
    #7
  8. macrumors 68000

    4JNA

    Joined:
    Feb 8, 2006
    Location:
    looking for trash files
    #8
    my two cents after supporting 100's of ibooks over lots of years.

    i've had several batteries with the same symptoms after long periods of sitting on a shelf out of a system.

    50% chance that a cell is dead, the battery will no longer function, recycle and replace is the only fix.

    50% chance that the cal/recal sequence will need to be run 10-15 times to get the battery back to a happy place.

    it's been about 1 out of 2 that would actually start to work again after several (lots) of drain/charge cycles. make sure you go to 'system preferences>energy saver' and click the battery tab and set both the screen and sleep to 'never' so the thing won't try to save it self when draining the battery. i had one that got to zero percent remaining, and then ran for another 1.5 hours while playing a movie...

    if it works after lots of cycles or you replace the battery, remember to change the 'energy saver' settings back! best of luck.
     

Share This Page