How long does AT&T hotspot/tethering take to fully drain iPhone battery?

Discussion in 'iPhone' started by amitdoc2b, Sep 26, 2012.

  1. amitdoc2b macrumors 6502a

    Joined:
    Feb 25, 2008
    #1
    I'm interested in hotspotting my iPhone 5 to my laptop through AT&T's service. If it was 100% battery, how long has your battery lasted for your iPhone 4/4S/5 if you hotspot all the way till 0%? I'm considering to pick up a battery pack case once they release for iPhone 5 (i.e. Morphie), and am also interested in knowing how much longer do these external battery pack cases keep your iPhone running when hotspotting as well. Thanks!
     
  2. rritterson macrumors 6502

    Joined:
    Jul 10, 2008
    Location:
    DC USA
    #2
    I tether via Bluetooth, which uses less power than Wifi. If the iPhone screen is off, I get better battery life tethering than I do browsing on the phone. I'd say about 15 hours from 100-0. Keep in mind that Bluetooth is much slower than wifi or LTE- it maxes out around 2 Mbps.

    If you are tethering to just a laptop, I recommend you tether via USB. It will charge the phone while tethering, so you are limited only by the laptop battery.

    I have no experience with battery cases.
     
  3. amitdoc2b thread starter macrumors 6502a

    Joined:
    Feb 25, 2008
    #3
    Thank you for your reply. Does plugging the iPhone to a laptop drain the laptop's battery quicker than it would not charging (I have a Macbook Air).. and how much quicker would it drain the laptop's battery? I prefer to use the LTE speeds for tethering to the laptop, so how long would the iPhone's battery last in that case?
     
  4. rritterson macrumors 6502

    Joined:
    Jul 10, 2008
    Location:
    DC USA
    #4
    The iPhone charges at up to 5W. How much quicker that would drain a laptop battery would depend on the battery capacity and how heavy the use of the laptop was. It will drain it faster. I would guess 10-15% faster, but that's really a wild guess
     

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