MBP Battery Fluctuations

Discussion in 'MacBook Pro' started by NewSc2, Mar 21, 2007.

  1. NewSc2 macrumors 65816

    Joined:
    Jun 4, 2005
    Location:
    Orange County, CA
    #1
    My MBP battery will lose 25% randomly while running on battery power. Basically it'll be humming along around 60% then 10 minutes later I'll look up and my battery will be red in the 20-30% range.

    If I open up Coconut Battery my max capacity will be around 75%.

    After letting the battery run down to 0% and shut off, I'll wake the computer and see that it still has 25-30% battery, and an hour of charge left. Coconut Battery will show my max capacity at 100% again.

    Does this happen to anybody else? I'm thinking of calibrating the battery after letting it run out, but this is annoying. I'm at work and I need to use the laptop for another few hours... this is the 3rd time this has happened in the past few weeks.
     
  2. bmcgrath macrumors 65816

    bmcgrath

    Joined:
    Oct 5, 2006
    Location:
    London, United Kingdom
    #2
    Yep same probs here and it's getting kinda annoying now. Done all the Apple calibrate stuff etc. Me thinks I might just call them and see what happens :)
     
  3. Mooey macrumors regular

    Joined:
    Feb 8, 2007
    #4
    Yeah, this is exactly what happened to my MBP before the battery completely died.

    If it dies, call Apple, they'll replace it.
     

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