"Enabling 3G" On My iPhone 5 Drains The Battery

Discussion in 'iPhone' started by beeinformed, Dec 30, 2012.

  1. macrumors 6502

    Joined:
    Jun 30, 2010
    #1
    Hi,

    I have an unlocked iPhone 5 (bought directly from Apple) which I use on the T-Mobile network and I've noticed that when I enable 3G on the phone, the battery drains much more quickly.

    I was wondering if anyone here has also experienced battery drainage issues when they enable 3g on their phones? Thanks! :)
     
  2. macrumors 68040

    0dev

    Joined:
    Dec 22, 2009
    Location:
    127.0.0.1
    #2
    This is true for every phone ever, 3G radios use more power than regular GPRS or EDGE. If you have poor 3G reception in your area it gets even worse.

    If you're worried about it only enable 3G when you're using data.
     
  3. macrumors G3

    Joined:
    Nov 7, 2007
    Location:
    New Sanfrakota
    #3
    Are you getting 3G with t-mobile? If not, it's simply wasting battery looking for 3G signal. The same would be true for any phones where there's no cellular connectivity (in the mountain, etc.), in which case it's better to turn it off.
     
  4. thread starter macrumors 6502

    Joined:
    Jun 30, 2010
    #4
    Not yet. I am one block away from that blissful moment!
     
  5. macrumors G3

    Joined:
    Nov 7, 2007
    Location:
    New Sanfrakota
    #5
    Then keep it off. It's wasting battery searching for 3G signals.
     
  6. macrumors 68020

    Joined:
    Dec 13, 2012
    Location:
    Southern California
    #6
    Mine runs on 4G constantly since AT&T's so strong in my area. The last time I saw 3G was on my iP4S.
     
  7. macrumors 68040

    haruhiko

    Joined:
    Sep 29, 2009
    #7
    But this is the very use of a smartphone.


    In my experience closing bluetooth helps reducing battery drain without crippling your device.
     
  8. thread starter macrumors 6502

    Joined:
    Jun 30, 2010
    #8
    Do you have more battery drainage using 4G on your iPhone 5?
     
  9. macrumors 68040

    haruhiko

    Joined:
    Sep 29, 2009
    #9
    Another battery hog is Passbook. I downloaded some passes which without my knowledge it's set to update location periodically. Every time I turned on the screen I saw a location arrow appeared then disappeared quickly and my battery was draining really quickly. I finally found out the culprit that's Passbook.

    I disabled the location services for Passbook and my battery life has since returned to normal.
     
  10. Baggio, Dec 30, 2012
    Last edited: Dec 30, 2012

    macrumors 6502

    Joined:
    Oct 18, 2012
    #10
    Bluetooth is the biggest battery killer for me. I use it daily in my car, so I leave it on all the time. I am on vacation and I don't have my car so I turned off my Bluetooth and my battery life is amazingly better. Not that my battery was bad while on Bluetooth, but the difference is noticeable.
     
  11. macrumors 6502

    Joined:
    Jun 22, 2010
    #11
    great thread
     
  12. macrumors 68040

    haruhiko

    Joined:
    Sep 29, 2009
    #12
    Even my big iPad, which has insanely great battery life, eats battery like crazy when it's connected to a bluetooth keyboard. LTE actually helps saving battery since everything finishes loading faster. The biggest culprits are location services and bluetooth.
     
  13. macrumors 68020

    Joined:
    Dec 13, 2012
    Location:
    Southern California
    #13
    No interestingly enough, I keep very close track of my battery usage. Using my iPhone 5, in the same exact manner (heavy daily usage) I get very good battery life.

    I make it a practice of not quoting run times, since they vary so significantly depending on a whole host of variables including usage.

    But suffice to say that I don't turn down display brightness all the way, it's usually at about 40%, and I do use push notifications for my five email accounts which receive about 60 emails a day, etc. So it's not like I go to extreme measures to eek out every bit of battery life. I'm on the web a lot (wishing for a larger display) and use Evernote and other apps frequently.

    I use my iPhone, as a smartphone, unlike my parents for example that only use a small number of all the phones features.
     

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