macbook air battery

Discussion in 'MacBook Air' started by JaneEyre, Dec 25, 2010.

  1. JaneEyre macrumors newbie

    Joined:
    Dec 25, 2010
    #1
    Hi,

    just before Christmas i bought my mac air 13,3 4gb 128ssd and im playing with it right now ;). Quite happy with it but the battery doesn't last as long as the promised 7 hours under normal web-browsing use.

    Do I need to fully charge and empty the battery completely before it works fine? And if so; do I have to get it to 0% accu and let it drop off or does that damage the battery?
     
  2. Hellhammer Moderator

    Hellhammer

    Staff Member

    Joined:
    Dec 10, 2008
    Location:
    Finland
    #2
    How much do you get then? Does web browsing include Flash?
     
  3. jeanpollux macrumors newbie

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    Sep 29, 2009
    #3
  4. size100 macrumors regular

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    Dec 18, 2010
  5. JaneEyre thread starter macrumors newbie

    Joined:
    Dec 25, 2010
    #5
    I get 4 hours of battery life browsing the internet on Chrome with Flashblock installed, but watching youtube clips.

    Video-editing and recording in PhotoBooth gives me 2,5 hours.
     
  6. Hellhammer Moderator

    Hellhammer

    Staff Member

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    Dec 10, 2008
    Location:
    Finland
    #6
    4 hours sounds normal if you're using a lot Youtube. Even HTML5 uses easily +20% of the CPU which causes shorter battery life.
     
  7. j_maddison macrumors 6502a

    j_maddison

    Joined:
    Mar 31, 2003
    Location:
    Nelson, Wales
    #7
    That's about the same as i get

    I think to get 7 hours you'll need to turn the brightness down quite a bit and not watch video. It's better than the battery in my MacBook, but no where near as good as the iPad, which is why I carry both
     
  8. fswmacguy macrumors 6502

    fswmacguy

    Joined:
    Aug 12, 2009
    #8
    We're seeing Flash chomp down on the battery more than anything. Use a Flash-blocking browser extension to help prevent that. Even the newest Flash 10.2 beta chomps the battery.

    When I have my MBA unplugged, I keep the screen brightness really low, but bright enough that I can see what I'm doing. Really helps with battery life.
     
  9. JaneEyre thread starter macrumors newbie

    Joined:
    Dec 25, 2010
    #9
    Thanks... it looks like the mac functions normally. In fact, I found out that the lowest brightness saves a lot of energy. With wireless LAN on, I seem to get 8 hours to work.

    In my opinion the difference between 10% brightness or 40% is practically zero; full brightness (100%) is nice but as long I'm using a battery I prefer longer battery life over brightness.
     
  10. Hellhammer Moderator

    Hellhammer

    Staff Member

    Joined:
    Dec 10, 2008
    Location:
    Finland
    #10
    And you get used to the lower brightness is matter of seconds. When you use it with low brightness, the full one will feel way too bright
     

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