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Macbook powering off unexpectedly

  • 09-01-2008 10:19am
    #1
    oobydooby
    Closed Accounts Posts: 697 ✭✭✭


    Hello, sorry if this has been posted before - I couldn't find a thread on it. I think it's a well known complaint because I heard others talking about it a while ago. My macbook (OSX, intel) used to give a warning that it was running on low power and to seek a power source. Recently though it doesn't bother warning, just switching itself off (very annoying if indulging in a bit of poker!). However it used to do that when the battery was nearly empty. The last day or two, it's switched itself off although fully charged, or about 2 minutes after being unplugged. It works fine with the power lead (hence the long message).

    Can anyone point me to a thread or info about this? Thanks.


Comments

  • #2
    440Hz
    Registered Users, Registered Users 2 Posts: 6,424 ✭✭✭440Hz


    oobydooby wrote: »
    The last day or two, it's switched itself off although fully charged, or about 2 minutes after being unplugged. It works fine with the power lead (hence the long message).

    Can anyone point me to a thread or info about this? Thanks.

    long answer:
    Check your battery health. This happened my sister's MBP over Christmas, she could only use it plugged in. I suspected the battery and was surprised to see it showing up as 99% charged and the 'green lights' all showing up ok, however when I checked the battery health it showed up that the battery cycles were nearly at their full quote and it just wasnt holding any charge. The minute the power was unplugged, the machine would die. she got a new battery, and everything is sorted now. Oddly, the old battery got a second lease of life and has a health of about 40% so it now works for a small while.

    Short answer:
    you almost certainly need a new battery. If the machine is in warranty get on to Apple about this.

    As for the notification - check to see if you need any battery util update.


  • #3
    oobydooby
    Closed Accounts Posts: 697 ✭✭✭oobydooby


    Thanks for that, will check out the warranty issue.


  • #4
    Mizu_Ger
    Registered Users, Registered Users 2 Posts: 1,561 ✭✭✭Mizu_Ger


    On a similar topic. My MB's battern is down to about 40% of its original capacity (according to the coconut app). The calibration seems to be gone out the window too as it will just switch off at about 60% charge remaining (which gets me about 45mins of work from a "full" charge). The MB is about 20 months old.

    The battery seems to be terrible. The (windows) laptop I use at work is about 4 years old and the battery has never been changed, but is a lot better. Is it worth getting a new MB battery? Has the quality improved?


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