Macbook randomly loses power?

Discussion in 'MacBook' started by Joel95, Jun 17, 2011.

  1. macrumors member

    May 28, 2011
    My white Macbook is randomly losing power and shutting down, even with charger and battery in. It makes the sound that when you hold the power button to force shut down the mac.

    When i boot my Macbook, it would make the chime, then suddenly lose power and shut off. Sometimes this would happen before the chime or mid-chime or when I've logged in. After losing power and shutting off, it would boot again, then shutdown, etc.

    I've been able to observe this problem with different batteries installed, with charger plugged in + battery and just the charger plugged-so i don't think it's not the battery's problem.
  2. macrumors 6502a

    May 19, 2006
    Any messages in the console logs?

    You got any temperature monitor programs installed to see if it's overheating and shutting down due to reaching the heat protect threshold?
  3. thread starter macrumors member

    May 28, 2011
    It's definitely not overheating. I can't even boot my macbook now and it's been off the whole night. As for console logs, I'll try if i can get into the OS
  4. macrumors Westmere


    May 16, 2008
    Try resetting the SMC.
    This should answer most, if not all, of your battery questions:

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