first full charge and use on rev C ssd 3.5 hours battery wtf?

Discussion in 'MacBook Air' started by GadgetGeek407, Jun 20, 2009.

  1. GadgetGeek407 macrumors 6502a

    Mar 26, 2009
    I charged the battery full im using sprint usb data card with brightness on 50% all iv done since 11am eastern n 3.5 hours later im down to 10 mins left....i thought people were easily 4.5 to 5 hours....all iv done literally is web surf n leave it idle lol
  2. nutman macrumors regular

    May 19, 2006
    Please, this is not twitter. Use some caps and periods. The wireless connection is probably what is killing the battery life. I usually only get the advertised battery life when i have very low brightness and simple things like pages open. No internet, no wifi, no extra dongly things.
  3. GadgetGeek407 thread starter macrumors 6502a

    Mar 26, 2009
    haha Sorry lol, charging time says 3 hours, some people said 2 hours. Same reason?
  4. King t. macrumors regular

    Oct 31, 2007
    i charged my MBA rev:C as well for 3+ hours and it only lasted 3:30 hours max. all i did was surf and was running skype, adium and imail in the background, my brightness was set to 65%.
    I thought they improved the battery, I'm currently very disappointed in REV:C :(
  5. Scottsdale macrumors 601


    Sep 19, 2008
    I am consistently getting 4:30 when setting display on third from lowest setting. I get more like 3:30 when turned up. It actually is an improvement over my last MBA which was a rev B 1.86 with SSD.

    I do a lot of writing (typing), and I have gotten used to turning the display brightness way down for that, but when I am doing other things like Internet, video and etc I get around an hour less. I use a 3G card also, and it does drain I am sure.

    BTW, what 3G service do you use? I use AT&T, and it's seriously fast and very nice to always have Internet access without worrying about "hot spots." Definitely worth the $60 per month... BUT, I wish I could just share (tether) my iPhone 3G connection which I pay $30 for the data for it. I would happily pay an extra $30 for tethering and save $30 per month, but I wonder what that would do to the iPhone??? Would it wear out sooner?
  6. Mactagonist macrumors 65816

    Feb 5, 2008
    NYC - Manhattan
    You would drain your battery like crazy! :) Otherwise it would be just fine.

    4-4:15 was about right for surfing over wifi when I had my Rev B Air FWIW.
  7. caonimadebi macrumors regular

    May 7, 2009
    Jailbreak your iPhone and install the Pdanet app. Once app is installed tethering 3G internet on your MBA is as easy as turning on wifi on both devices. Battery life on iPhone seems to be on par with heavy safari EDGE browsing (on the 2G iphone), battery drains quicker but it's acceptable.
  8. bootcamp'd macrumors newbie

    Jun 20, 2009
    New York, NY
    not to be rude...

    but with battery life like this (among other non-functionalities) who cares if the thing's light? :rolleyes:
  9. tsubikiddo macrumors regular

    Mar 15, 2008
    Melbourne, AUS
    Yea, I tend to agree with the OP that the MBA battery has still got quite a fair bit of room for further improvement

    I'm like Scott who type a lot, and I put brightness on 1 block, just enough to see what's going on the screen and quick typo checks
    with BT & WiFi off, I managed to squeeze 4hrs of battery life

    I have been in scenarios where I have to let the ambient light sensor to tune up the brightness and the battery only lasted ~3hrs

    it's very disappointing, i agree
    this is also the reason I am very committed to all means to extend the battery life (i.e. fan rpm control, thermal paste, brightness...etc)
    The battery does not last long enough when I am working 'full-on',
    still it's still capable in most of the other, normal-use situations
  10. xparaparafreakx macrumors 65816

    Jul 29, 2005
    People like us who did fork over the money for lightness. We know its limits and love how nice the machine is. Just leave us alone.

    3.5 hours seems normal. Bluetooh, wifi and keyboard lights off? If hard drive Rev. C did you allow the hard drive to speed down?

    I must be the poor one here, T-Mobile tethering for me, $25 a month. 3G in some places but lots of Edge. Fine for email and crap.
  11. ayeying macrumors 601


    Dec 5, 2007
    Yay Area, CA
    I get constantly 4 hours on normal use, stuff without flash sites or pounding my speakers everywhere. Bluetooth is off, wifi is always on though. Brightness is 1/3 from left -> right.

    Heck, I get 2 hours of gaming on battery from a full charge on Vista with High Performance and 1/2 brightness (sometimes full, then my life drops to ~1 hour 15-30 minutes). I've been doing that a lot lately, put on 10 charge cycles in 2 days cause of that.
  12. johnnyjibbs macrumors 68030


    Sep 18, 2003
    London, UK
    First full charge? Batteries have a charge lifespan that is a little like an elastic band - they need to 'flex in'. This means that your first couple of charges will not see the best battery life but after it has warmed up (say after 5-10 full charges), you will start to see much better performance.

    Don't write it off yet.

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