battery charge on my new 11" Air...

Discussion in 'MacBook Air' started by Slugo, Oct 2, 2011.

  1. macrumors newbie

    Slugo

    Joined:
    Oct 2, 2011
    Location:
    PA
    #1
    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:
     
  2. macrumors 6502a

    Joined:
    Jul 24, 2011
    #2
    What are you doing for those 2 hours?
     
  3. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #3
    ______________________________________________________
    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
    [​IMG]
    Further reading:
    ______________________________________________________​

    ______________________________________________________
    This should answer most, if not all, of your battery questions:
    Apple Notebook Battery FAQ by GGJstudios
    ______________________________________________________

     
  4. thread starter macrumors newbie

    Slugo

    Joined:
    Oct 2, 2011
    Location:
    PA
    #4
    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...
     
  5. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #5
    Have you read that Battery FAQ yet? Have you looked at Activity Monitor yet?
     
  6. thread starter macrumors newbie

    Slugo

    Joined:
    Oct 2, 2011
    Location:
    PA
    #6
    not yet, but I will. Thanks guys...
     
  7. macrumors G4

    Joined:
    Oct 23, 2010
    #7
    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.
     
  8. macrumors 6502a

    GekkePrutser

    Joined:
    Aug 18, 2005
    Location:
    Ireland
    #8
    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. Maybe it's not right.
     
  9. thread starter macrumors newbie

    Slugo

    Joined:
    Oct 2, 2011
    Location:
    PA
    #9
    Thanks again for all your help...

    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
     
  10. macrumors 6502a

    Joined:
    Jul 24, 2011
    #10
    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.
     
  11. thread starter macrumors newbie

    Slugo

    Joined:
    Oct 2, 2011
    Location:
    PA
    #11
    yes, Flash is installed... :confused:
     
  12. macrumors member

    Joined:
    Dec 31, 2008
    #12
    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.
     
  13. macrumors 6502a

    IngerMan

    Joined:
    Feb 21, 2011
    Location:
    Buffalo, NY.
    #13
    Install Click to Flash under Safari extensions. That will give you some battery usage time.
     
  14. macrumors 6502

    Joined:
    Aug 14, 2005
    #14
    streaming video is whats killing your battery life. 5 hours+ is true when you lightly web browse and type on word
     
  15. thread starter macrumors newbie

    Slugo

    Joined:
    Oct 2, 2011
    Location:
    PA
    #15
    I just installed 'Click to Flash'. Hopefully, it will help... :eek:
     
  16. macrumors 6502

    Joined:
    Aug 30, 2011
    #16
    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.
     
  17. thread starter macrumors newbie

    Slugo

    Joined:
    Oct 2, 2011
    Location:
    PA
    #17
    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...
     
  18. macrumors 6502a

    Joined:
    Mar 29, 2009
    #18
    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.
     

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