iOS 6 iPhone 4s battery drain

I had the same problem...losing 20% of battery per hour. i fixed it by turning off all of the notifications except 3. i turned the email push to manual. but it was the Notifications that was doing it. It now has been at 50% exactly for 1.5 hours with Zero battery loss....

Fixed

I had previously posted the same experience. After finding that Exchange Push was my battery-drain culprit, I restored the account as push and it immediately started to drain fast again. I now have my Exchange account using Fetch instead. Since then, I have no battery issues whatsoever. I'm using Safari, tethering, bluetooth... you name it, with no out-of-the-ordinary consumption. I'm not turning cellular data off any more.

I noted then that the iCloud account also uses Push, but it's not giving me any trouble.

Can you compare what your uncle has on his device against what you have? And Yes a good idea to take it for exchange since its so new. However, if thee are certain apps you are running and you install those on the new device you will have the same results most likely (unless in fact there is a hardware issue) Its not the iOS 6 itself but rather service area, certain apps, certain configuration etc. most likely causing your issue. A factory reset and leave it as such would tell the tell. If it remains poor outofbox then you know. if its ok then you need to find the offending app or configuration setting causing the issue. Sorry but unfortunatly about all you can do. Its a known fact that the system services (most not needed, only cell,compass, maybe traffic should be on) and diag and usage (also not needed) and too many notifications/locations (every app you have installed wants to turn this on) will cause these issues as well as poor configuration exchange email account. Anyway keep us posted if you try again with this advice before Sunday or after Sunday when you visit the Apple store.

CalebM39 wrote:

Was very excited about the new update (6.0.1) only because there was a small part of me that thought they would fix the battery issues. Boy was I wrong. My 4S still drains at same rate and my phone still says I'm constantly using it (right now it is at 93% after a FULL CHARGE and all I did was play some poker for ten minutes, Usage: 56 min, Standby: 57 min). Stupid. Going down to Apple Store on Sunday and demanding a new phone. My 4S isn't even 5 months old. I can't take it anymore. My Uncle, with a two year old iPhone 4, is getting amazing battery on iOS 6: Usage: 8 hrs 48 min, Standby: 2 days, 18 hrs. I just want the same;or at the very least not have to literally worry about my phone dying throughout the entire day of school (and have it last just as long).

Try this and let us know if it works:

My solution is: settings>>>mail, contacts, calendars>>>fetch new data. Then turn OFF "push" and set fetch to "hourly" or "manually." I think the push feature with the iOS6 is the killer. Perhaps this has been fixed with iOS6.0.1 but I haven't installed it yet. I now have no less than 70% at the end of the day under normal use.

Solved the problem for me!!!

I had battery drain as well. I found, that it had to do with a broken bookmark in Safari replicated via iCloud to iPad and MBP. I could not delete it, because I did not know which of my > 500 it was and the iPhone always stated, that deletion is not possible because syncing is on its way. After Loading 6.0.1 i decided to set it up as new phone, exported all bookmarks on MBP to have a backup in case i miss a bookmark and then deleted all bookmarks on MBP.

I reinstalled all Apps via iTunes and had to enter all settings again, but today I had the 3rd day of battery with just 1 hour of talktime. Bluetooth on, WLAN on, iCloud replication for all items on, FB on, Twitter on. I did not switch off any suggested item, and the phone keeps running and running,.....

In case it reverts back to previous behaviour (just 6 hours until battery dies), I will report again.

Thomas

I tried restoring my phone from backup and the battery life problem did not go away. Today I restored as a new phone and battery life is back to normal. I think an app was constantly running a process in the background. Not sure which one but I have been carefully reinstalling apps one at a time. So far, so good. iOS 6.0.1 doesn't seem to be the problem after all.

I had this problem and tried all of the solutions, ie deleting caches, resetting settings, turning off location services etc. I found a thread that suggested it may be an iCloud issue. I went to settings, deleted iCloud account and then left it for a few hours. Bingo battery back to normal. I re signed in to iCloud....4 hours later still ok. Please give this a go!

If you are getting "dataaccessd" crash logs it's related to your Exchange Calender (Google / Hotmail also uses Exchanger Activesync tech), iOS 6.0.1 seemed to fix this for me. But you can try the full reset and fresh install to see if you can resolve it or just put your Exchange accounts on Fetch/Manual.

If you don't use the Calender, just disable it. Or if possible use the iCloud Calender.

But I find that server side (Exchange) can also cause issues which doesn't help with matters either.

Updated to iOS 6.0.1 yesterday and have had the same battery drain issues and have recharged my iphone 4a four times in 24 hrs. I came across a mention earlier in this thread about Facebook possibly being the problem so I deleted FB and then reinstalled it through the settings page. Success! I have only gone through 2% battery in the past two hours instead of two minutes :-) Very happy now.

thanks pehico for the tip! I also had massive battery drain and the phone was running really hot! A Californian Hand Warmer... (4s with iOS 6.0.1). Removed iCloud on the iPhone, reinstalled iCloud, problem solved.

pehico wrote:

In settings/iCloud try deleting iCloud account then sign back in to it. Worked for me!!

Update to my post from two days ago: Went to the Genius Bar last night. I was told that they couldn't diagnose anything out of the ordinary, but said that they would like to install a new battery. Disappeared for 10 mins and came back, handed me my iPhone 4s and so far, so good. Battery drain seems fixed, but I want to wait a few days until the final verdict is in. I was told that if the battery drain comes up again to restore it to new phone. If it still continues they would exchange my phone for a new one. Also, the question was asked if the update to iOS 6.0.1 was interrupted. He was very apologetic and said that unfortunately I had to go through this process. Since it seems ok for now, I am happy. Will report back if the topic is back on the table.

I also was losing battery life and found that FB was part of the problem. When I did the 6.0 update I started to lose time rapidly after a charge. I hoped the 6.0.1 would fix this. HAHA

I went into settings and scrolled down to facebook. After the 6.0 update, FB re-enabled the calendar and contacts. This syncs with the iCloud and saps the power. I then turned it off on my iPad. Phone, iPad, computer were all syncing to iCloud's contacts and calendar. I then went back to settings and checked every app in the list. Quite a few had re-enabled themselves after the update.

I charged my phone fully at 1:00 today, it is now 5:00 and it is still at 100%. Before I would have been at 90% or lower by now.

It is a mix answer question. In general if you are not using bluetooth do ahead and turn it off. No reason to have it on. I have had it on and off and not really noticed any difference (when not in use) but generally I keep it off unless I need it. So the best answer is if you are not using it turn it off, if you use it a lot leave it on. Probably less battery wasted than firing up display to turn it off and on all the time. Lastly to see how it affects your particular device try it off for a day or two then on for a day or two and see if you notice any difference. The general idea in iPhone battery efficiency is turn off items you dont need or really use to squeeze all you can out of your battery. Some good places to start is with the following:

• settings>privacy>location services>system services ; turn all off except cell network search,compass and traffic
• general>about>diagnostics and usage ; set to dont send
• Any apps you dont need locations on for turn off (Weather app is a good one if you stay put most of the time and use it a lot, it keeps it from firing up GPS every time you open it. Just add the city or two you are in all the time and you have what you need , if you travel you can always enable it again before the trip)
• Notifications off for any items you dont need (like maybe stocks app if you dont use that app no need for it running in notifications) Or perhaps Groupon. I mean you can just open the app once in a while for any special buys instead of it sending all those notifications all the time yes?

Anyway items like that will help a LOT. Hope this helps.

Once more for all who still suffer. I solved the problem for me by executing the following steps:

1. exported all safari bookmarks on my macbookpro to a html (in order to save them)
2. deleted all bookmarks via safari on MBP and waited that it replicated them to the cloud
3. selected the reset option for the iphone in itunes (phone connected...)
4. selected it as a new phone (do not restore the crapy setup)
5. installed all the apps again
6. had to enter all the passcodes again
7. do not switch off any option - just switch on whatever you want to use
8. also enable icloud again

and off we go with a well behaving phone (I use it now for more than a week without troubles)

I assume that with the last updates there happened some error with the bookmarks info and that error is only defeatable by removing them all.

😎

Syncing to the iCloud caused my battery drain. Go to Safari on the iPhone/iPad and turn off sync bookmarks. I have hundreds on my iMac and laptop that were constantly changing. I then went in on the iPad and iPhone and deleted all the bookmarks they took from the iCloud. FaceBook is a demon also. Do not let it sync your contacts and calendar. After the IOS 6 upgrade, a lot of my apps that I turned off settings had them re-enabled. You have to go back to each one and disable the notifications etc. Go into the phone app on the iPhone and delete your recent calls and missed calls. Do the same with Messages. I noticed my phone losing battery life when these 2 things had much data. If your phone vibrates and plays sound, turn off the vibrate. This eats lots of power!

I did all this tweaking and my battery is doing better. Full charge at 11:00am Wednesday. It is now 8:00am Thursday and I am at 91%.