Battery drain with iOS 5 on iPhone 4

My iPhone 4 with IOS5 drains about 8-10% per hour with 'normal' use, while this was maybe half that with the previous version of IOS. If I want the iphone to last all day, I really have to minimize use to just cell phone use. I'm afraid to be without a charger for more than about 6 hours.

I'm connected with Exchange, but only send and receive emails when I open the mail app. I'm also connected to the iCloud but only via wifi.

I would love to get an app that shows me exactly which apps use a lot of juice or an option on the iPhone that basically 'kills' anything that drains the battery in such a way that I can use it as long as possible for making phone calls.

OK - good news on my iphone 4 that had terrrible battery life after upgrading to ios 5.0.

I spoke to a few techs at Apple and found the solution for my iphone.

First, he had me check, and my usage time (settings...general...usage), it showed that my usage time was virtually the same as my standby time. The phone was constantly running and draining the battery. Not good, the standby time should be much higher than usage time.

Problem in his estimation was that when I went through the process of loading 5.0, i did a restore, and old apps that are getting loaded back on at the end of the process are causing conflicts with 5.0. The solution is to restore the iphone "as new" during the process. You need to back things up because you are going to wipe everythng.

Here's the article Apple provided me about how to backup and restore the iPhone As New:

http://support.apple.com/kb/HT4137 My phone is now running 5.0 and my batter life is back to normal.

PS - I learned during this process that not everyone experiences these conflicts when they load 5.0, my wife didnt have any problem, so they will not experience these battery problems. But all of you "helpers" on this chat board who are telling folks that the software is fine and that problems must be from using the phone more or that people need to turn everything off dont understand the nature of this extreme power drain and should keep their comments to topics that they understand..

glad it worked ... i posted the exact experience last week and the solution. i really dont know why people made themselves crazy turning things on and off.

After about 4 days my iPhone 4 went back to normal, and the battery life has been really good since. It doesn't seem to overheat either. I looked around at the different settings, but did not turn anything off. I did uninstall Facebook and reinstall it for another issue I was having. Other than that the only thing I did was "Power off" my iPhone for about 10 minutes. I'm not sure what fixed it, but I am glad that it is working properly now. With all the issues I have seen I am hoping that they will release an update to the software soon that will address battery life.

Hi, I had the same issue as you (Calendar flickering in NC) and your solution worked fine, thanks for sharing!

For the battery, I need to see as I have just done the change.

@jamesfromwilmet

That makes no sense. Most of the people having issues are 4S owners. So already that can't point to a bad upgrade.

Second, disabling some services seems to solve the problem for some users. I have done what others suggested: disabled photo stream disabled time zone updates and disabled Facebook. My battery is doing much better. During issues, I was having the same idle time = usage time as others. So "bad upgrade" doesn't seem like the right answer here.

Apple has confessed that there are battery life related bugs in IOS 5 and a fix should be coming in a couple of weeks:

http://is.gd/zoqOSX

What is the point of your email telling me that my detailed solution, to which more than 10 people have responsed to me and told me that my solution fixed their problem, make no sense. I dont have a 4g, the steing was for peor with iphone 4 and wouldn't pretend to know the answer to any problems that you may have. People who pollute

Message boards with speculative opinions and guesses make it very hard for people who need useful facts to get the info they need

Same problem here!

Hi,

Apple is working on an update...

For the moment, you can help your "battery".

You can desactivate the time zone.

ios5 try to be all the time connected to internet and GPS.

You can choose how many apps you want desactivate.

For example, you go in notification and you can desactivate some apps...

You can do the same thing with the gps, you found it in location.

Also, you can put manually the push of email. There is 2 settings in "mail" to do.

So, you can turn off the bluetooth when you don't use it.

Finally, closing apps you don't use.

Have a nice day.

It`s a complete non sense.......

why should i turn off all the services to have a reasonable battery life......

In that case is better use the phone off ......

You don't need to turn anything off.

Not All..... but almost

I have the same issue here, iPhone can consume 50-60% of battery life during the night. 😟

I don't know what to do, I used to like my iPhone but now it's really annoying..

Nex0r