iOS 6 iPhone 4s battery drain

I had/have the same problem on both my iPhone 4s and iPad 2 yesterday. I updated both OTA and the battery was dead on both before I went to sleep, despite not using the phone that much. I had done a reset and also a "reset all settings" on my iPhone.

From a battery off (low battery) state, I charged both up to 100% over night. I then noticed the battery drain wasn't happening so I figured that fixed it. I went all morning and only got down to about 95% with 1 hour of "usage".

Then I ran Maps to show a co-worker the new Maps. After doing this and playing with Siri a bit, the battery started draining steadily. It went from 92% to 75% (with 90 minutes of "usage") to 62% (with 2 hours of "usage") in a few hours with me not using the phone at all. Maps is in the background, but it isn't doing anything like directions or anything (no location service in use indicator).

Currently I'm at 62% with 2 hours of "usage".

So there's something about Maps and/or Siri that's causing the battery to start draining very quickly. I noticed the following processes started running after using Maps:

absinthed.N94

calaccessd - runs when Calendar process is in memory

sociald

webbookmarksd - runs first time Safari is run

assetsd

accountsd

I rebooted my iPhone 4S and it immediately showed 58% battery (a loss of 4%) and only the assetsd and accountsd processor were running, the other 4 above were not. Calaccessd is part of Calendar and runs whenever the Calendar is running.

That leaves the following as being the probably cause:

absinthed.N94

sociald

webbookmarksd

Of note, my iPad 2 is still showing 100% battery after all day with light use. I never loaded Maps on that. None of the above processes except accountsd, is running on that.

I updated to iOS 6 via iTunes/USB cable. This is not an OTA-only problem.

I'm losing 1% of battery every few minutes when I use the phone, less when on standby. It's obviously far worse after the upgrade. I've reset the phone and turned off a few location services.

The phone is hot, even in standby, so clearly some process is running continuously.

I think the problem has something to do with either Siri or driving directions. I just tested running Safari, Calendar and Maps after restarting and I'm not seeing crazy battery drain at the moment.

None of those cause the absinthed.n94 or sociald processes to run. Calaccessd runs when Calendar runs, but stops running when Calendar is killed. Webbookmarksd runs with Safari keeps running after Safari is killed. Nothing seems to run when Maps is run. Currently Webbookmarksd is in my process list and battery still seems okay, though I'm going to keep track of it. Currently it's at 54% with 2 hours and 20 minutes of 'usage" and 11 hours and 19 minutes of Standby. It seems to be losing 1% every 10 minutes now with no usage other than checking the battery every 5 minutes.

Both times I started noticing crazy battery drain, I had used Siri to ask for driving directions, but I had also used the camera and did some other things. So next time it gets stable, I'm going to try using features one at a time until something goes wrong.

I don't think the issue is Siri. I am runing ios 6 on my Iphone 4 so no Siri. Since upgrade battery is draining twice as fast.

Nope. I have an iPhone 4 and I don't get Siri nor the turn by turn and my battery is crapping out.

This will work.

Reset all settings. (Settings>general>reset>reset all settings )

You will not lose any data but you will lose all cookies (ie signin passwords) ringtone settings wallpaper and lockscreen settings but you will get superlative battery power

I forgot to add you need to reboot after the reset.

It asks for a restrictions passcode. I never set one that I recall and my normal ones don't wok Any way to recover it?

Has anyone tried prk60091's fix?

I just implemented Techwrekfix's solution on my iphone 4 and ipad 3rd gen, will see if that helps at all 🙂

Will let you guys know if anything happens worth noting 🙂

Just turned off my shared photo stream and reset my phone.now my battery life has leveled off some. It's still going faster than the phone did pre ios6

I am having the same problem, any solution guy? Resetting after Turning off location service and siri give you a little longer usage, but what is this? turning off everything? I dont see a value creation if we dont get to use all of the features. Its a smart phone

I have kept most of the the location services on with my last fix, the last fix for me drops the photo sharing which I find to be creepy and useless for me. For me the value is not being tied to a charger like I was I. My droid 2 global even with the back up battery.

Yeah I did, the battery draining some what slowly now. Like 10% per hour of usage. I also let the battery drain completely before resetting the phone and then charged it to 100%.

Let me know if Techwrekfix's solution works please.