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Who's your mobile provider and do you have a good signal say 4 bars or so. I know battery life is impacted when you have low signal.

I have AT&T. I get good reception where I use my phone (home and work). I think maybe there is something wrong with my battery. However, I never had this issue with iOS 5. I even downgraded yesterday for a little bit and the battery wasn't draining the way it does on iOS 6. I know this because if I'm using safari my battery percentage will drop at least a couple percent while I'm typing a message like this.
 
Currently, I'm at 30% battery with 3 hours and 23 minutes of usage.

Brightness is on auto-brightness.
Wi-Fi is off
Bluetooth is off
Silent mode (no sounds)
iCloud contacts on, everything else off
Email set to fetch every 30 minutes on one gmail account

All I've done is text and light web browsing (reading articles). No video, no audio, no phone calls, nothing. This is pathetic.

Maps are terrible. Excel spreadsheets aren't displaying properly. This is the worst version of iOS to date. But hey, at least now I can put a song as my alarm clock!

wow...you really got a bad break. For me everything is just the opposite.
 
Try recalibration. Run the thing ALL the way down til it shuts off. Then charge all the way up, ideally overnight.
 
I charged mine a few hours ago:

Usage - 1 Hour, 57 Minutes

Standby - 11 Hours, 23 Minutes

Current Percentage - 84%

I guess mine is better than before
 
A lot of people are having problems with this. Myself, just bleeding battery energy despite trying everything. I even tried to switch back to 5.1.1, but it is no longer possible.:mad:
 
My iPhone 4 didn't seem to get worse after the update, but I only used it for a couple of days before my iPhone 5 came in.

Last night I charged my 5 while it was restoring from backup. It had just hit 100% when I unplugged it, so I didn't let it trickle charge at all. I also didn't charge it overnight and it lasted me up until about 4:00 pm today. the last time I checked usage it was at 6 hours and nowhere near dead so I am guessing I got at least 7.5 hours of real usage out of the initial charge. Will have to see how things go after the battery is properly conditioned.
 
hmm my first full day of using the IP5 and its been 12 hrs of constant online browsing and facebook on LTE, also took over 100 photos today most with flash at a family gathering just got home and i'm at about 55% battery

i'm very impressed compared with my IP4 which would be dead by now.

Not sure if its iOS or the new phone though
 
my iphone5 battery life isnt going too well too..
yesterday was at a huge event, 3g was literally unusable. lte was going on and off with 1bar. and my iphone was overheating the entire evening.
works poorly as it tries to search out networks.
i think the whole day i only chalked up like 3hrs usage before it died on me.

today.
2hrs 45min usage, 13hrs 46min standby, 65%.
so i guess u have to make sure the network is good in ur area, if not, switch off lte?

-update- i read the message before this before i read the entire thread.
sorry to those who has poor battery life on ios6. it's still the same with my iphone4 n 4s.
 
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My Battery life is great on the 4S. Getting around 7-9 hours of heavy usage and 1.5 days standby. This is with wifi on 24/7, 2-3 hours heavy gaming like dead trigger, lots of whatsapp, sms's, a couple of calls, general messing around with phone cuz of new OS, a few pictures, 2 push emails (dont get many emails), a little music 30-40 mins.

I updated using itunes, did not restore.
 

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My experience with iPhone 4 is VERY BAD. Now i have to charge my phone every day, even with a light use. With massive use, i cannot reach the evening. It's so annoying that an update has only made things worse.
 
iOS 6 works very well for my old 3gs that is still using the original battery. My 3gs is faster and the battery lasts longer than before. :D
 
Restore and set up as a new phone, then report back.

Restoring did indeed fix the problem for me.
BTW, after restoring I gained 2GB of space. Clearly, doing a simple update leaves behind something that's unneeded.
 
Currently, I'm at 30% battery with 3 hours and 23 minutes of usage.

Brightness is on auto-brightness.
Wi-Fi is off
Bluetooth is off
Silent mode (no sounds)
iCloud contacts on, everything else off
Email set to fetch every 30 minutes on one gmail account

All I've done is text and light web browsing (reading articles). No video, no audio, no phone calls, nothing. This is pathetic.

Maps are terrible. Excel spreadsheets aren't displaying properly. This is the worst version of iOS to date. But hey, at least now I can put a song as my alarm clock!

1. Turn off bluetooth if you are not using it
2. Under notfications shut off calander and reminders (if not using them)
3. under general and restrictions turn off ping
4.under general and about, go to diagonstic, turn off auto send
5 under location services. then system services turn off time zone
6. Set email to manual instead of fetch or push
 
Restoring did indeed fix the problem for me.
BTW, after restoring I gained 2GB of space. Clearly, doing a simple update leaves behind something that's unneeded.

I might have to try this today. I've noticed much poorer battery life on my 4S since the iOS6 update. Here is how my morning has gone:

Woke up 20 minutes ago
Rolled over, plucked phone off dock, checked email
Noticed I was down to 94% battery life within 4 minutes
Immediately get on MacRumors to see if this is common

I'd hate to have to completely restore it to default, but might not have a choice.
 
I'm also noticing really bad battery life on my 4S, hoping there will be a fix soon. It makes no sense, i had 12 hours when i was on 5.1.1
 
I haven't had any problems with iOS 6 on the 4S.

BUT....

Yesterday I used Navigation for the first time over Bluetooth to my car with Spotify running as we'll. Dropped to 70% in about 30 minutes. That doesn't upset me though, that makes me use a car charger.

Our devices are getting more and more powerful and we expect to charge them every 3 days like a 2002 LG flip phone. I see people in here listing all the things they have turned off to achieve all day battery life. If I wanted to turn everything off I wouldn't buy an iPhone. We have car chargers and these things called 110 volt outlets everywhere we go, so unless you're a deep sea fisherman, I don't understand why everyone is up in arms about battery life.
 
A lot of people are having problems with this. Myself, just bleeding battery energy despite trying everything. I even tried to switch back to 5.1.1, but it is no longer possible.:mad:

Try this

1. Turn off bluetooth if you are not using it
2. Under notfications shut off calander and reminders (if not using them)
3. under general and restrictions turn off ping
4.under general and about, go to diagonstic, turn off auto send
5 under location services. then system services turn off time zone
6. Set email to manual instead of fetch or push
 
I'm actually paying attention to usage today--5 hours 51 minutes of usage, 17 hours 57 minutes on standby, battery is at 32%. Still haven't let it get a good overnight trickle charge, but I will be doing that tonight so I imagine my usage tomorrow will only improve.
 
I too have been noticing severe battery loss. I got up at 10AM local time and used it for some Wi-fi email and Safari for maybe 10-15min, plus a 5min text exchange (received and played a 2min video). Used FourSquare on 4G, was out on 4G for about 45min, and have been home on Wi-Fi (not really using it except for the occasional text message. I went from 100% to 22% at 3PM local time :confused:. I used to be able to get through the day and maybe be at 20-30% by night time, including playing games on my bus commute to work.

I was having issues with freezing/other random issues (Mailwas all messed up sometimes) before the upgrade. I did a clean install and I have a lot of freezing (Mail specifically, and the unlock screen) and just general poopy performance. I'm thinking it's the phone, but I am in the battery-boat regardless of hardware or software causing it. Need to see a Genius before that Oct date..
 
Mine was terrible the first day after I upgraded. I think it may have had something to do with the signal being weak at my job. I seems to be about the same as it was with iOS5 now.
 
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