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Old Dec 30, 2012, 06:49 PM   #1
beeinformed
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"Enabling 3G" On My iPhone 5 Drains The Battery

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!
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Old Dec 30, 2012, 06:53 PM   #2
0dev
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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.
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Old Dec 30, 2012, 06:56 PM   #3
JayLenochiniMac
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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.
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Old Dec 30, 2012, 07:01 PM   #4
beeinformed
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Are you getting 3G with t-mobile?
Not yet. I am one block away from that blissful moment!
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Old Dec 30, 2012, 07:03 PM   #5
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Not yet. I am one block away from that blissful moment!
Then keep it off. It's wasting battery searching for 3G signals.
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Old Dec 30, 2012, 07:06 PM   #6
maxosx
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Mine runs on 4G constantly since AT&T's so strong in my area. The last time I saw 3G was on my iP4S.
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Old Dec 30, 2012, 07:12 PM   #7
haruhiko
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But this is the very use of a smartphone.


In my experience closing bluetooth helps reducing battery drain without crippling your device.
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Old Dec 30, 2012, 08:19 PM   #8
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Mine runs on 4G constantly since AT&T's so strong in my area. The last time I saw 3G was on my iP4S.
Do you have more battery drainage using 4G on your iPhone 5?
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Old Dec 30, 2012, 08:32 PM   #9
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But this is the very use of a smartphone.


In my experience closing bluetooth helps reducing battery drain without crippling your device.
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.
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Old Dec 30, 2012, 08:36 PM   #10
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But this is the very use of a smartphone.


In my experience closing Bluetooth helps reducing battery drain without crippling your device.
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.

Last edited by Baggio; Dec 30, 2012 at 08:59 PM.
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Old Dec 30, 2012, 08:41 PM   #11
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great thread
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Old Dec 30, 2012, 09:23 PM   #12
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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.
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.
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Old Dec 30, 2012, 09:24 PM   #13
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Do you have more battery drainage using 4G on your iPhone 5?
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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