13" Macbook Pro Battery Issue

Discussion in 'MacBook Pro' started by Dr. Scientist, Jan 7, 2011.

  1. Dr. Scientist macrumors member

    Joined:
    Apr 24, 2010
    #1
    Right, so my Macbook Pro is 28 weeks old. It shows a battery capacity of 5393 mAh out of 5770 mAh with a condition of "normal" at 93% health.

    The issue is that the battery has been draining MUCH faster than usual. Yeah I know it depends on what I'm doing/Youtube/Flash blah blah blah. I get it. What usually took 6-8 hours of normal time to drain is now taking 2 hours, max.

    I reset the PRAM, etc --- not much different.

    Now, here's the BIG issue. I have NEVER been able to recalibrate my battery because after it hits 10-15%, the computer just shuts off. It never goes into sleep. This has happened every single time.

    Has this ever happened to anyone before? The Apple Store is ways away, and I don't want to waste time going if they're just going to tell me my battery is "normal" since I haven't hit my 80% health indicator.
     
  2. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #2
    PRAM has nothing to do with batteries, power or charging.
    Use Caffeine to keep it from sleeping. Even if it shuts off, you can let it stay that way for 5+ hours unplugged, to fully drain the battery.

    This should answer most, if not all, of your battery questions: Apple Notebook Battery FAQ
     
  3. Dr. Scientist thread starter macrumors member

    Joined:
    Apr 24, 2010
    #3
    I tried that with Caffeine this past Sunday. It shut off at about 8% anyway. I let it stay off until Wednesday. I pressed the battery indicator and it was still at one bar --- it wasn't flashing or anything. I let it stay like that for one more day. Still the same result. I decided to give up and now I'm here.

    The thread didn't really help me with a new solution. Thanks though, your help is much appreciated :)
     
  4. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #4
    So you're saying you left it unplugged for a day and it still had charge in it? What happens if you keep turning it on?
     
  5. Dr. Scientist thread starter macrumors member

    Joined:
    Apr 24, 2010
    #5
    That's the weird part --- it doesn't turn on.
     
  6. pricej636 macrumors 6502

    Joined:
    Mar 30, 2010
    Location:
    Colorado
    #6
    This is not normal behavior. My 13" goes all the way down to 1% before it shuts off. Always has and I've never done a calibration on it. I also get on average 5-6 hours on a charge, depending on what I am doing of course. Definitely take it in and have it looked at.
     
  7. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #7
    If it doesn't turn on, that means the battery doesn't have enough juice in it to power it up, regardless of what the battery indicator says. That's the point of calibration: to make the readings more accurate. If you've left it unplugged for 5+ hours after it dies, just plug it back in and let it recharge, as normal.
     
  8. NickZac macrumors 68000

    NickZac

    Joined:
    Dec 11, 2010
    #8
    To address the increased draining, what Adobe software are you using, especially flash based?
     

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