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MacBook Pro randomly shuts off only when on battery

1101 Views 8 Replies Latest reply: Feb 6, 2013 11:39 PM by darthrevan945 RSS
darthrevan945 Level 1 Level 1 (55 points)
Currently Being Moderated
Jan 20, 2013 1:10 PM

Hi all,

 

I have a MacBook Pro 2,2 15" 2.33ghz C2D. running lion 10.7.5

For the past few months I had a broken battery in it, it didn't work at all, I only had it there to fill up the whole. I finally got a new, working battery, installed it, and the computer will just shut off without warning at any given time, while on battery power. It doesn't happen if its plugged in. I can usually get about a half hour or an hour use, then it shuts off, I can turn it back on and the battery is still practically full. Any idea why it's doing this?

Thanks in advanced - Joey

MacBook Pro, Mac OS X (10.7.5), 15" C2D 2.33ghz, Windows 8 x64
  • sdpitbull Level 3 Level 3 (965 points)

    You need to run a system repoort so we can see the health of the battery. I know you just said it was replaced but we need to check.

     

    From the Apple menu choose About This Mac...

    Then click More Info...

    Then click System Report...

     

    and copy the Power Section and paste it here. It should look like:

     

    Screen Shot 2013-01-20 at 2.35.26 PM.png

  • OGELTHORPE Level 7 Level 7 (22,585 points)

    If this is a battery from Apple then you should have them examine the MBP with the battery.  This should probably require a replacement.

     

    If this is a third party battery, you may have purchased a substandard one.  Sadly this is often the case with 'bargain' batteries.  Try and return it if you can.

     

    Ciao.

  • SwankPeRFection Level 4 Level 4 (1,435 points)

    How long have you had that battery in the laptop?  I ask because it's charge cycle is at 3 and there's no way in heck that's right unless it's brand new or something.

  • dalstott Level 4 Level 4 (2,455 points)

    Have you tried resetting the SMC?

     

    http://support.apple.com/kb/HT3964

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