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Slugo
Oct 2, 2011, 03:31 PM
lucky to get 2 hours plus. Just bought the computer about a month ago at our local Apple Store in Lancaster, PA. Love it, but the battery is rated for 5 hours. That's a laugher! Anyway, I'm running Lion and I hear it's a battery hog.

Any help or words of wisdom is appreciated... :confused:



scarred
Oct 2, 2011, 03:36 PM
lucky to get 2 hours plus. Just bought the computer about a month ago at our local Apple Store in Lancaster, PA. Love it, but the battery is rated for 5 hours. That's a laugher! Anyway, I'm running Lion and I hear it's a battery hog.

Any help or words of wisdom is appreciated... :confused:

What are you doing for those 2 hours?

simsaladimbamba
Oct 2, 2011, 03:38 PM
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Have a look at Activity Monitor (Applications / Utilities /) and select All Processes and sort by CPU to see what the culprit may be.

image below uses sorting by CPU as an example
http://dl.dropbox.com/u/10644330/MR_Image_Hotlinks/MR_screenshots/MR_screenshots_03_2011/Acitivty_Monitor.png
Further reading:
Making The Most of Activity Monitor (http://mac.appstorm.net/how-to/os-x/making-the-most-of-activity-monitor/)
What Is Activity Monitor (or How to Take Your Mac's Pulse) (http://oreilly.com/pub/a/mac/2005/10/04/activity-monitor.html)
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This should answer most, if not all, of your battery questions:
Apple Notebook Battery FAQ (http://forums.macrumors.com/showpost.php?p=9875442&postcount=23) by GGJstudios (http://forums.macrumors.com/member.php?u=186377)
______________________________________________________

Helpful Information for Any Mac User (http://forums.macrumors.com/showpost.php?p=9848667&postcount=6) by GGJstudios (http://forums.macrumors.com/member.php?u=186377)

Slugo
Oct 2, 2011, 03:56 PM
I'm just doing some misc. net surfing. No downloads, picture files or lots of streaming video. I have an iPad for watching that stuff. Actually, just building up my bookmarks with what I like. That's it in a nutshell...

simsaladimbamba
Oct 2, 2011, 04:07 PM
I'm just doing some misc. net surfing. No downloads, picture files or lots of streaming video. I have an iPad for watching that stuff. Actually, just building up my bookmarks with what I like. That's it in a nutshell...

Have you read that Battery FAQ yet? Have you looked at Activity Monitor yet?

Slugo
Oct 2, 2011, 04:16 PM
not yet, but I will. Thanks guys...

KPOM
Oct 2, 2011, 04:24 PM
What is your brightness setting? 5 hours is an overstatement, but you should easily get 3.5+ hours based on what you describe. I was on a 4 hour flight recently and used up about 2/3 of the battery in about 2.5 hours of usage, including accessing the on-board Wi-Fi. I normally leave brightness at 50% and let the ambient light sensor do its thing.

GekkePrutser
Oct 2, 2011, 04:38 PM
This has come up before, but new MBA's out of the box will do a complete index of the drive. Because the drive is so fast, they can work really hard at it and thus burn a lot of CPU cycles for the first few days.

It'll probably settle down just fine. I was getting 4 hours even under heavy use (VMWare) on my 2011 11" Air, while at the same time surfing the web etc.

Edit: Oh sorry I see it's a month old now. It should really have settled down then. Make sure you check out the battery health with Coconutbattery (http://www.coconut-flavour.com/). Maybe it's not right.

Slugo
Oct 2, 2011, 04:59 PM
I'll check on the battery health. I'm still using the computer on the factory settings. Didn't change a thing. I'm on my iPad right now and recharging the Air. I'll report back, and thank you all... Mike

scarred
Oct 2, 2011, 05:04 PM
I'm just doing some misc. net surfing. No downloads, picture files or lots of streaming video. I have an iPad for watching that stuff. Actually, just building up my bookmarks with what I like. That's it in a nutshell...

Did you install flash? 2 hours is low for just net surfing. You should be close to the advertised 5 if that really is all your are doing.

Slugo
Oct 3, 2011, 06:13 AM
yes, Flash is installed... :confused:

codyc1515
Oct 3, 2011, 07:24 AM
yes, Flash is installed... :confused:
I have the 2011 13" MacBook Air and have found that in general sites with Flash on them will only give me about 3 hours worth of battery compared with around 6-7 hours.

IngerMan
Oct 3, 2011, 07:26 AM
yes, Flash is installed... :confused:

Install Click to Flash under Safari extensions. That will give you some battery usage time.

damnyooneek
Oct 3, 2011, 07:32 AM
streaming video is whats killing your battery life. 5 hours+ is true when you lightly web browse and type on word

Slugo
Oct 3, 2011, 08:55 AM
I just installed 'Click to Flash'. Hopefully, it will help... :o

kulimer
Oct 3, 2011, 12:20 PM
I think 7 hours is just what they say, you can't actually expect that long, I'd say 4 hours is a safe bet, though 5 and 6 hours do happen.

Slugo
Oct 3, 2011, 03:32 PM
I think 7 hours is just what they say, you can't actually expect that long, I'd say 4 hours is a safe bet, though 5 and 6 hours do happen.

Apple estimates 5 hours of usable time. I'm now running i off of direct AC current during the day and disconnecting at night. I will use the battery every third day and then deplete it per Apple instructions. I don't need to be running wireless all the time. We'll see how it works out...

VMMan
Oct 3, 2011, 08:31 PM
I get about 6 hours on my MBA 11.6" with light usage which is consistent with anandtechs testing. Using flash reduces battery times by about 2 hours.