battery life on safari

Discussion in 'MacBook Pro' started by Gaura Mohana, Apr 17, 2011.

  1. Gaura Mohana macrumors regular

    Joined:
    Feb 24, 2011
    Location:
    Gainesville, FL
    #1
    [​IMG]
    currently jumping between 3 and 5 hours
    brightness at half, keylights at half
    no other programs on
    I no this isnt that bad - but this is a 2 month old MBP - shoudnt it be getting >7 hours running only safari with 80% battery charged?
     

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  2. ECUpirate44 macrumors 603

    ECUpirate44

    Joined:
    Mar 22, 2010
    Location:
    NC
    #2
    Battery life is determined by many factors.
    This should answer most if not all of your battery questions. Compliments of GGJstudios. Apple Notebook Battery FAQ
     
  3. Srirama macrumors member

    Joined:
    Dec 4, 2010
    Location:
    Chennai
    #3
    I see from the screenshot that you are tethering instead of using wifi,I have personally experienced lower battery life via 3G than via wifi.
    Btw Mine is 13 inch 2010 version.
     
  4. Gaura Mohana thread starter macrumors regular

    Joined:
    Feb 24, 2011
    Location:
    Gainesville, FL
    #4
    I am using a tata indicom plug2surf modem

    btw my usage when the screenshot was taken was extremely light
     
  5. blueroom macrumors 603

    blueroom

    Joined:
    Feb 15, 2009
    Location:
    Toronto, Canada
    #5
    Your wireless USB 3G stick will chew through power pretty readily, also get a browser that supports FlashBlocker.
     
  6. Mollemand macrumors regular

    Joined:
    Aug 1, 2007
    #6
    To me the biggest Q is whether or not you use Adobe Flash?

    My battery-life improved dramatically when I installed the click-to-flash plug-in on Safari.

    On the downside, the temperature in my flat went down several degrees (Celsius) when I stopped using Flash. ;)
     
  7. Gaura Mohana thread starter macrumors regular

    Joined:
    Feb 24, 2011
    Location:
    Gainesville, FL
    #7
    I use Safari, and have clicktoflash installed > i try to stay 50 feet away from flash at all times.lol
    btw its just a CDMA 1x modem...
    anyways - coudnt it technically not take more then 5v? the max of usb?
     
  8. Srirama macrumors member

    Joined:
    Dec 4, 2010
    Location:
    Chennai
    #8
    Battery life takes a huge hit,while using plug 2 surf modems,have experienced it first hand.
    That is primarily your source of low battery life.
    Regarding the 5V,i think your right about that being maximum a usb port supplies.
     
  9. dusk007 macrumors 68040

    dusk007

    Joined:
    Dec 5, 2009
    #9
    The max of USB is 2,5W or 500mAmps at 5V.
    It probably takes even a little less but still a lot more than you think.

    You have a 60Wh to achieve 7h your notebook must use only 8.5W on average.
    Now add just 1W. With 80% charge you end up with 5h.
    Simply pluging in a USB stick keeps the notebook from saving energy by shutting down all the USB ports as well as putting to sleep all the responsible controllers and stuff and again it is CDMA which needs more energy than Wifi for the simple reason that it needs to transmit over much greater distance.
    Also if you don't need the backlight keyboard turn it off entirely. While half/min or max backlit keyboard makes little difference. Between on and off is almost around 0.5-0.8W. It is a farily useless feature anyway. Turn on some lights that is much healthier for your eyes every eye doctor will tell you that.
     

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