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Old Jul 24th, 2011, 11:12 PM   #1
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Exclamation new macbook air - battery life / fan

just bought a new 2011 macbook air 11"

the fan seems to run wild, and the battery seems to deplete at around a percent per minute with nothing more than a web browser open.

doesn't seem right. I have used an 2010, and don't recall the fan even running and it was a very cool running machine.


any other experiences or thoughts?
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Old Jul 25th, 2011, 03:07 AM   #2
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I'd try resetting the PRAM and NVRAM. If that doesn't work, time to create a restore drive from your Lion installer and nuke and pave.
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Old Jul 25th, 2011, 06:33 AM   #3
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Or just take it back.
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Old Jul 25th, 2011, 09:26 AM   #4
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Check you CPU usage before doing anything else. Perhaps something is running them very hard.

I just got a 13" i7 and normally it runs quite cool. Keep the CPU's busy though and the fan kicks in and the case gets warm in the upper left corner.

I saw one message on another forum where somebody found that the thermal paste on the CPU was a little light and so he added some bringing the temperature down. No need for you to do that though if there is a legit problem that is warranty covered.
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Old Jul 25th, 2011, 09:51 AM   #5
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Also on first startup don't forget that it's going to be doing a full index of the drive for spotlight, etc. which can take up quite a lot of resources for the first while until it completes.
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Old Jul 25th, 2011, 12:00 PM   #6
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Check your Activity Monitor to see if anything is hogging up the CPU power. I call Flash 10, seems to be the biggest culprit.
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Old Aug 11th, 2011, 07:58 PM   #7
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Quote:
Originally Posted by cchaynes View Post
just bought a new 2011 macbook air 11"

the fan seems to run wild, and the battery seems to deplete at around a percent per minute with nothing more than a web browser open.

doesn't seem right. I have used an 2010, and don't recall the fan even running and it was a very cool running machine.


any other experiences or thoughts?
My wife just got her new MBA 11" a few days ago and has been complaining that the battery drains very quickly. So today we ran hers side by side with my late 2010 model, and yes, the battery does drain a lot quicker. In 10 minutes, hers drained 10% but mine only drained 4%. This is really disappointing performance for a mobile machine. So then I checked on Apple's website in the MBA section and noticed they no longer featured long battery life for their new model, so go figure...
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Old Aug 13th, 2011, 12:58 PM   #8
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that was exactly what i thought too! I had used a 2010, and it seemed to last quite well. The 2011, seems to burn through a battery in an hour which is crazy! its almost as though they slapped these together and didn't test them....

i took mine back and traded it for a new one that seems to run cooler and the fan runs less with slightly improved battery life, but still not good enough for a flight which is why i wanted it.

hopefully this can be addressed via software or firmware updates
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Old Aug 13th, 2011, 01:33 PM   #9
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So then I checked on Apple's website in the MBA section and noticed they no longer featured long battery life for their new model, so go figure...

Apple (Canada) - MacBook Air - It thinks and acts like a full-size Mac.
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Old Aug 13th, 2011, 02:22 PM   #10
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For those of you with noise problems, etc there has to be a cause. I'm running an i7 13" MBA with the fan at 2000 RPM and I can't hear it. I'm outside, in about 25C weather. CPU is sitting at 58C but fairly idle. The 13" does have a better battery life than the 11", and I'm seeing it reporting up to 7 hours in past usage. Right now I have about 60% battery and over 2 hours left on it (Being outside, I have the screen brightness way up and using Wifi). Given that rate, I should be seeing less than a 1% drop every 2+ minutes.
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