Q: Iphone 5s battery drains fast after ios 7.1 update.

IPhone 5s 16 - 4.40 mins using mainly 3G since ios 7.1 update. Was 5.50 mins on 7.0.6.

This is with notifications, Bluetooth, wi fi. Auto downloads off, no back ground refresh and auto dim on.

Battery is appalling on iPhone 5s - apple advertise upto 8 hours on 3G.

I installed my iphone 7.1 using dfu install not over the air.

Really annoyed at apple in this.

How do you do the configuration to 3g>

Settings > Cellular > Enable LTE: OFF

It has been reported earlier that LTE uses more battery, but I don't know if that still holds true with current chipsets, but probably like 3G is very location dependent.

I can confirm that Reset --> Reset All settings certainly reducted the battery drain back to pre 7.1 status... but so did turning off the cellular use as part of a test.

But before executing Reset All, take notes of iPhone's setup.  The Reset All turns off all the location settings, which may be the root of the issues.  The Reset All also wipes fingerprints, resets backgrounds, removes all wi-fi passwords and asks other questions on restart.  Anything you may have customized specific to the iOS is reset - so be prepared - you have been warned!   I think that going thru the location settings may work too.

As far as the general firmware updates go, within the computer industry, whenever a system's firmware is flashed, part of that process involves "resetting" the firmware to its factory defaults.  This is done because the firmware may change settings or introduce new settings and values that do not conform to the existing saved values etc.. Yes, its a pain but it's also an industry "best practice" to perform reset... so in this context a Reset All makes sense to me.

Whether it's 100% true for Apple products, I do not know but is is firmware.  Why tihs drain is not impacting more iPhones, I do not know. I am just reporting, for the benefit of others here, what haulted the rapid battery drain I saw after my 7.1 OTA upgrade and returned it to pre-upgrade use.  Other's have reported tha the location settings seem to be key.. so YMMV.    Cheers.

Right, after reset all; you have to go through your entire phone again to set it up properly to prevent battery drain. Otherwise you are back at the 7.0 drain. Which is what I was commenting on where somebody said reset all fixes it; not making sense. 

I did not reset my phone, but tightened the various settings up more, reset network settings, cut all location services > system services OFF ... and rebooted the phone.

Only needing to enter my wifi password; and maybe re-enable some system service location at some point, but the phone hasn't missed anything yet.

So far my battery life is a lot better and no more location arrow every time I pick up the phone and intermittently without using any app that needs location.

The reset didn't fix the problem entirely.

The problem is back. : (

Mr. Bricker.  Thanks for the update.  I will remain viligiant on what apps "requests location info" and see if I notice a marked jump after allowing access.  Already about 3 apps have requested access and so far no drain but it's only been 24 hours. Thanks.

Same here.  I hope by reporting this here that they realize there is a a HUGE bug.  I had a full battery last night and woke up this morning with my phone dead.  This never happened before.  I usually woke up with about 80-90% before.

I'm not sure that there is a single (HUGE) bug.

I've seen that this "battery drain after update" is always happening and IT HAS NOT the same cause, as there are lots of solutions.

For some, a simple network reset is enough, for others, a "home+top" reset,..., for others a full restore. For me, not any of those, I had to switch off iCloud (sync) - some process (which one??) was hanging and CPU was at 100% almost all the time.

So, it seems really bad, because a "HUGE bug" is "easily" fixed, but a lot of different possible causes are much more hard to tackle...

Did anyone visited the apple service center regarding this???

I did and they found nothing bad in diagnostics test.

they did agree there is a fast rate of reduction in battery backup.

they rebooted and reinstalled  IOS ( but sadly 7.1, because they had no choice).

but still my battery problem remains.

BUT they gave me a clue!!! PL Check it will be helpful by any means..

they told that i did 4 times diagnostics test including one by service center.

and found that my battery never archived full cycle charge even once.

but to my surprise i did had my mobile charged over night all days"

I've bought mine at the operator and there is no Apple store in my country, less a service center.

But taking account the responses from the Apple "geniuses" posted here, I do not see the point...

I just did a test of streaming a video from ABC over WiFi, full brightness, push email turned on, bluetooth on.  I got almost 6 hours before the battery crapped out.

What I suggest is the following, that I and others have said before.

1. Hard reset hold both buttons until Apple logo appears.

2. Restore from an iTunes sync and backup.  This made a difference for me, battery life got much better.

3. Limit push notifications to those you really need.

4. Limit location services to those you really need, and watch to see if the indicator comes up.

5. Get the app System Activity Monitor to look for a runaway process that is using a lot of CPU.

6. Suggestion by others to reset all settings.

7. Suggestion by others that iCloud may be involved, and to try to turn off some iCloud settings.

Nate

Great advice, Nathan.

I just add another bullet:

8. Limit or turn off 'background app refresh'.

I have a Iphone 5 and after the latest ios upgrade to 7.1 a couple of days ago, my battery life goes to 10% in less than a day at work.  I am a very casual user, meaning I only check email a couple times a day & don't use the phone all day because I'm busy working. but by 2 pm I have a low battery error message & it's at 10%.  I am also one that charges my phone overnight.  Prior to the latest upgrade I would still have 89% battery life by bed time. Does anyone know what Apple did that is draining the battery so much? and How do I turn whatever it is off?

dpatt3, see my post above.

Nate