great battery life with cellular data turned off

Discussion in 'iPhone' started by aleni, Aug 23, 2010.

  1. aleni macrumors 68000

    Jun 2, 2006
    i just notice when i'm at home, i only use wifi, so i disable 3G but the edge symbol is still appear, i don't need it and i just found out the setting to turn it off totally.

    i didn't realize that the setting is there. is it iOS4 only?

    my iPhone 4 has a better battery life than before, i can touch 7-7.30 hours of quite heavy usage including playing 3D games like gangstar and assasin creed.

    it can reach to 8.5-9hours without playing 3d games but heavy use on youtube, browsing and listening to music.

    my setting is brightness 60% with auto brightness turned on, 3G off, cellular data off, wifi on, location service on, notification on, mail set to fetch hourly.

  2. esadb macrumors 65816


    Nov 29, 2008
    With cellular data off you do know you cant receive MMS right?
  3. Pressure macrumors 68040


    May 30, 2006
    Well, it is pretty well-known that 3G networks use more power than their 2G brethren.

    Nothing new here.

    Edge is a 2G technology, so you are getting edge data at least (if you hadn't turned off Cellular data).
  4. nman040 macrumors member

    Sep 6, 2008
    I have noticed the same thing. I knew that it would save batt life but I wasn't expecting 6 hours of usage and still 50% left. I notice when I'm in an area that has bad reception, batt life decreases significantly. Should it make a difference? Guess it needs more power to transmit cellular data with low reception??
  5. AppleFan360 macrumors 68020

    Jan 26, 2008
    You will find that even with 3G and data turned on, battery life will still be pretty good at home because you are using wifi which uses less power anyway.

    I did what you are doing but it got to be a pain after a while and now I just leave everthing turned on. It's much easier to throw the phone onto a charger rather than having to remember to turn things on and off.
  6. Looon macrumors 6502a


    Jul 10, 2009
    This isn't new. Also if your IPhone has to search for a signal constantly that uses a lot of battery.
  7. eng42ine macrumors 68000


    May 2, 2010
    Running into a burning building...
    Or sms..
  8. jjprusk macrumors member

    Jul 20, 2007
    And my car doesn't use much fuel when I turn off the engine... What's the point of owning a smartphone without data?
  9. g35 macrumors 6502a

    Dec 13, 2007
    Yes you can. SMS works.
  10. aleni thread starter macrumors 68000

    Jun 2, 2006
    who the hell use mms these days??

    about sms, it's working just fine.
  11. aleni thread starter macrumors 68000

    Jun 2, 2006
    i said when i was at home where i don't need data from cellular because i use wifi, which is faster.

    i turned it back on when i'm in area that has no wifi.
  12. Carl G35c macrumors 6502

    Aug 14, 2008
    you get even better battery time if you turn everything off :rolleyes:
  13. aleni thread starter macrumors 68000

    Jun 2, 2006
    ease up man, do you turn on your car's lamp at noon?
  14. thep33t macrumors regular

    Jun 18, 2009
    If im in a parking garage I might.
  15. sammich macrumors 601


    Sep 26, 2006
    Having your headlights on during the day reduces the likelihood of a crash happening.
  16. Wicked1 macrumors 68040


    Apr 13, 2009
    New Jersey
    Yep, and when I turn everything off including my iPhone 4 I can last for days on a single charge, however I can not:

    Make a call
    use it for an ipod
    send MMS or SMS
    can't take pictures or video

    Basically I am restriceted to doing nothing at all

    No thanks, I will carry a charger around and use my iPhone 4 as Steve told me I should just use it and have fun
  17. NikeTalk macrumors 6502a

    Apr 5, 2010
    My mom uses mms because she has a flip phone. Not everyone emails pics from one phone to another phone, it's easier using mms. Quick and efficient.
  18. aleni thread starter macrumors 68000

    Jun 2, 2006
    if i was outside my home and have no wifi around, i turned the cellular data on. does it
    make any difference than your opinion?

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