After installed ML Macbook Air 11" turns off by itself

I am having the exact same problem on my 13" MBA. I have to hold the power down to restart. It is obviously a problem with Mountain Lion. I hope they fix this soon!!!

Same problem here with my 2011 Macbook Air 13... Random turn-off at any battery level, even with every app turned off... After I have to press the power button and re-login...

I did a clean install of Mountain Lion this morning, only to be faced with the same issue...

Plus, I had some really strange battery behaviour yesterday: it would charge 2-3% of the battery, then become stuck and showing 20:00 hours charge time remaining (tried SMC reset 3 times with no result). Now it seems to charge ok... but we'll see...

Any solutions ? Should I send it in for service ?

Thanks !

I have an update... I have gone back to Lion but the problem is still there... I now suspect the SMC 1.6 Update for my problem... I'm going to call Apple on Monday and see if they have a solution, and if not the Air is going in for service !

Hello,

My MBA 13 after the update also has this problem!

It appearing to turn off the message and I've tried repairing, but it turns itself off!

Who know of any solution, please inform!

If I find out anything I'll write it here...

I have the same issue. I took my 2012 MBA 11" into the Apple Store yesterday, they wiped my machine, re-installed mountain lion and tested it overnight: it worked fine. Brought it back home today, used it about 2 hours and now it is just starts and almost immediatley shuts off. I didn't have time with it to put any software on. This is not a conflict with extensions or anything like that. Disk passes utility check after each crash. Have checked console logs and the stop appears to happen at random.

I have another appointment at the Apple Store tomorrow morning.

BTW mine doesn't go to sleep, it is dead. To restart it I can reset the SMC or just unplug it and plug it back in, then it starts. Doesn't stay working on battery either. And have tried resetting the PRAM as well.

Guys,

Seems a joke, but today I woke up and called Apple support ... when the guy asked me to call the MBA he had no more problems ... rebooted, used and left on all day and so far is running fine!

I do not know what happened, but thankfully now!

I hope that you have been the same!

Not for me. My MBA went back to the store, was wiped clean, hardware tested 21 hr and given back to me. Worked for 2 hours then started randomly shutting off. I took it back again today and am waiting to hear back from them. This issue we are having appears to be rare. Lucky us :-)

I haven't been using Chrome, and in fact Chrome is not installed on my system yet after it was wiped so in my case that is not the problem.

Apple is now saying my problem is faulty RAM (which requires a new logic board for a MBA as it is soldered).