Battery time?

Discussion in 'MacBook Air' started by PyroMac2011, Jul 26, 2011.

  1. PyroMac2011 macrumors newbie

    Joined:
    Jul 24, 2011
    #1
    I thought the 13" MBA was rated to be about 7 hours. Just surfing the net without the back lit keyboard and medium brightness I am only getting about 4-5 hours.

    Is there something I am missing?
     
  2. MattZani macrumors 68030

    MattZani

    Joined:
    Apr 20, 2008
    Location:
    UK
    #2
    Is that what the battery is estimating?

    Do you have flash installed (And not ClickToFlash/AdBlock) including Chrome?
     
  3. srxtr macrumors 6502a

    Joined:
    Jul 1, 2010
    #3
    I think the battery time left shown is only an estimation. I think it's particularly off during the first day you get your macbook. Give it a few days and it should be more accurate.
     
  4. stevenpa macrumors 6502

    Joined:
    Jun 28, 2011
    #4
    I'm getting about the same. Waiting for a few cycles.
     
  5. Pyrophor2011 macrumors member

    Joined:
    Jul 1, 2011
    #5
    Ok, I will just let it run down then and see how long it actually gets.
     
  6. radiohead14 macrumors 6502a

    Joined:
    Nov 6, 2008
    Location:
    nyc
    #6
    we got quite a bit of pyro's in here.. unless you're one dude = multiple names?
     
  7. NutsNGum macrumors 68030

    NutsNGum

    Joined:
    Jul 30, 2010
    Location:
    Glasgow, Scotland
    #7
    busted!
     
  8. radiohead14 macrumors 6502a

    Joined:
    Nov 6, 2008
    Location:
    nyc
    #8
    haha.. yea i kinda figured it's the same dude.. didn't mean to come off as the forum po-po. just don't know why ye ol switcheroo was pulled

    waiting to hear from PyroMacPhor2012 :)
     
  9. nooaah macrumors 68000

    nooaah

    Joined:
    Sep 3, 2009
    Location:
    Philadelphia, PA
    #9
    2:30 on this charge with 72% remaining. Using only Firefox on airport WiFi with brightness at 40%.
     
  10. Scuba629 macrumors regular

    Joined:
    Jul 14, 2010
    #10
    Where should one get ClickToFlash/AdBlock? I did a search and found a couple different sites for them.
     
  11. radiohead14 macrumors 6502a

    Joined:
    Nov 6, 2008
    Location:
    nyc
    #11
    safari menu - extensions
     
  12. rkheyfets macrumors regular

    Joined:
    Dec 16, 2010
    Location:
    NYC
    #12
    as others have said use flashblock or if your using websites with flash your battery life will obviously be lower...
    Also it may take a few cycles for the battery meter to properly calibrate as has been my experience.
     
  13. jackyyeow macrumors 6502

    Joined:
    Jul 5, 2011
    #13
    Use CoconutBattery to check power usage (watt), you should be seeing 40~50% brightness, AirPort on and idling should be around 5watt, browsing MR should be around 7.x watt without flash, and with that power usage you should be able to get 7 hours surfing time average.

    Or, time your usage in certain time frame like 30mins and record the battery % before and after. The longer your test period, the more accurate it is, less than 30mins might not be as accurate.
     

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