iOS 5.0.1 - Made my iPhone 4S battery performance worse!

Same here. Thought mine was fixed, but it's not. Plugged my phone out at 7:00 am. Checked mail, sent one message, replied to one person on Facebook and played one word on Wordfeud. It's 7:45 now and I've got 92% left. Strange....

I thought that my iPhone was fixed as well. Now I've reset my network settings, and turned off location services and iCloud and things have calmed down on my phone again. My plan is to use it this way long enough to see if it will act up again with these turned off. If not, then I'll turn them back on one at a time, powering down in between. I plan to work out what's causing this battery problem that way. I'm also removing all apps that I don't use all the time in hopes of finding out if this is just a bad acting app.

I'm also checking for the characteristically bad CPU usage patterns that I see that cause the abnormal battery usage in between using apps in hopes of finding a smoking gun there.

Wish me luck *smile*. This may take some time, though.

I have the same problem I got an iPhone 3GS about 2and a half months ago and I just updated to iOS 5.1 and now my battery is doing horrible.it was already bad enough I kind of have bad eyes but I think I might seriously go back to my BlackBerry torch because IT ACTUALLY WORKED and I did what Appl tells you to do once a month and calibrate the. After by charging to 100% then letting it drain to 0% so I have no idea what to do, switch back to blackberry go to android or ger a refund and buy an iPhone 4S.

yaarab wrote:

My mail is not set to '' push '' but manual. Here's what i did last night after recharge. Unplugged at 01:15am and immediately deleted the mail account ' gmail '. By 09:40am the battery was 93% with usage at 33min and standby at 8hrs 27min. This probably worked. But what do i do now with the gmail account. Setup again ????

yes that will be fine

or use the app from itunes

@the other wil, i tried the route you suggested to downgrade. itunes said not authorised with this device. any ideas?

GeoBlanc wrote:

Will try battery doctor.

That looks about normal especially with only 2 bars. Your radio boosts power when you are receiving a weaker signal to maintain cell contact and with that picture you are in a weak signal area.

nbercasio wrote:

Complaining a non-issue? have you read the board at all? So many are experiencing horrible battery performance AFTER the update.

While waiting for Apple to figure what is wrong and offer a fix, I got this "Portable USB Charger - PC"

http://store.sony.com/webapp/wcs/stores/servlet/ProductDisplay?catalogId=10551&s toreId=10151&langId=-1&productId=8198552921666393153&tab=featuresTab

How do you figure so many. a couple hundred people out of millions of iphones sold is not a lot.

*****Anyone have a good program to track apps "leaking" CPU. I use AAI but as soon as its off it doesn't track anymore. I'm trying to see what's eating up CPU and pinging databases.

I've increased my battery a bit more by signing out of my login from a bunch I programs I don't use regularly. Seeing if I can increase that with a little bit of detective work.

Don't know what you are talking about...

Yes, I'm also looking for a CPU monitor better than AAi...I've got location services, iCloud, and my gmail account all turned off, yet I'm seeing CPU activity spikes every 5 seconds or so, and just a whole lot more activity than there should be on a phone with a lot turned off.

What I need to see is at least the accumulated process time for each process, And hopefully some way to associate the spikes with the process that's causing them. There isn't a lot more that I can turn off, just my Exchange account and the basic set of apps are left at this point. I guess that I can turn off my Exchange account, since my iPad also has that account.

Anyway, if anyone has a recommendation for a better CPU monitoring app than AAi, it would be much appreciated, especially one that does more with the process list.

You can't downgrade an iPhone without jailbreaking it. That is why I always try to wait a couple of weeks to see what will happen with an ipdate to the OS. I didn't wait to update from 5.0 to 5.0.1 and got his with the battery snafu that bothered many of us. I did all the tricks I could find in the forums and managed to get a good day and a half out of my phone.

I waited about two weeks from the time 5.1 was released to update and have not had any problems with this version. I immedately did a full discharge and recharge cycle to reset the battery meter which seemed to help a bit more.

Until somone can come up with a really really long lasting battery that doesn't drain quickly, smartphones will probably always have battery issues of one type or another. I agree that there was something amiss in iOS 5.0 and 5.0.1 because I can't imagine that many people have the same problem is just a coincidence. But the programmers seem to have gotten rid of most of the bugs in version 5.1.

Ok, after the installation of the 5.1 update, my battery performance would last 8 hours per charge which was a non issue prior to previous updates. Few days ago, I installed BatteryDoctor and I would launch it when my battery is down to 20% then start charging.

I am happy to share that I am getting more than 24 hours of battery life per charge. I really don't know what is the app is doing but I'll use this 99 cents temporary solution while Apple is trying to pinpoint the issue with the 5.1 update.

Apple is suppose to call me tomorrow to install an app to monitor my phone so we'll see what they can do.

same problem here. the batt life drains rediculously.

I'm joining the ranks of people whose battery got worse. I didn't really have battery issues at all before this. I don't heavily use my phone most days, so battery has never been a big issue. Now after the update it's draining twice as fast. I changed nothing other than updating. All settings, apps, etc are exactly the same as they were before the update when things were working fine.

Haven't restored to new yet...I really don't feel I should have to wipe my phone clean, though I'm sure I'll end up having to.

I thought maybe it was just me but now I see tons and tons of people are reporting worse battery life.

I'm new to this discussion board, so bare with me. I own a iPhone 4s also. I too upgrade to iOS 5.1. I was one of the lucky ones that had no real battery issues. Well until I up graded to 5.1. My battery drained extremely fast and I really don't use mine intensely like others.

After hours of research and testi g on my own phone, I believe I have found the solution to the battery drain.

So far, after utilizing the steps I will outline below, my phone has held fast and stopped draining.

Here we go:

go to

SETTINGS,

GENERAL,

scroll to bottom and press RESET.

THAN PRESS ( and this is important) PRESS RESET ALL SETTINGS

( do not press ERASE ALL CONTENT and SETTINGS) !

Pressing RESET ALL SETTING will NOT delete or erase any apps, photos, videos ect.

What it will do is reset your phone back to FACTOR SETTINGS and treat your phone as a newly programmed phone.

You will NOT loose your cellular carriers connection either.

After you have pressed RESET ALL SETTINGS, the phone will cycle through it's resets ( ie. Switch off, display apple logo and progress bar, shut down again, show apple logo and another progress bar and than shut down. ( patiences is important here. It takes a few minutes)

After all this turn phone back on. If you had a custom background screen and lock screen, they will be gone but fear not. Go to SETTINGS, WALLPAPER and to your photos and change it back.

You will also have to enter in your custom settings again ie. Reenter password for WiFi and other custom changes you did to the phone originally.

NOW here's the last step after you have added back your custom changes: go to your physical home button at bottom of phone and DOUBLE CLICK to bring up short cut apps you use the most, HOLD down on one of the short cut apps to get them to wobble and show minus sign and DELETE every one of them. AGAIN...DELETE shortcut apps not actual app.

This function that keeps your most used apps available for instant access, actually drains your battery considerable. It actually keeps them active and not dormant.

Personally I think they need to get rid of that function.

My battery life held fast now. Usually at 100% it would have drained almost 30% or more over a short time but now it really hasn't moved.

Only pain is that you will have to remember to delete these shortcuts more often.

Good luck. Hope this helps