IOS 4.3.3 battery life has been significantly reduced

PUSH is on, Fetch manually.

sorry for my english...

Upgraded my 3GS to 4.3.3 on Friday. Have never had a battery problem. By Sunday the battery was draining at a ridiculous rate, going completely flat in just a few hours. Recharge, flat in a few hours.

Came to these boards Monday and read that a whole lot of other people are having the same problem.

Tried the "Restore as a new phone" solution. It worked for the battery life. But it also eliminated all my contacts and calendar information from my phone.

Restored from yesterday's backup to see what would happen. Battery immediately started draining again. Tried the "turn off the apple store" solution. Didn't work. Has dropped from 100% to 65% in just an hour and 34 minutes (usage and standby same).

There's clearly something very, very wrong with 4.3.3. If we have to turn off anything, or lose everything, just to make our "smart" phones work then we might as well all switch back to clamshells or move over to Android.

Apple, fix this and fix it now.

Hi johnfromtimonium,

Which email client/account are you setup with ? Is your Exchange Email Account activated ?

I realized my iPhone4 battery drained really fast when my Exchange Email Account (company email) is activated & the Fetch New Data PUSH is turned to ON.

Try turn OFF your Push for mail & see if your battery performance improved...

Settings > Mails, Contacts, Calendars > Fetch New Data > Push ---> OFF

The battery drained issue is gone once I turned OFF the Push feature.

Hi All,

I updated my iphone 4 to 4.3.3. at the same day it came out and had no problems at all. Last Saturday I sync it with iTunes and made some app updates. After that the battery was flat after 5 hours of normal usage. I tried almost all recommendations of this thread, but nothing solved the problem.

Thanks to Giulia I tried to turn off the apple store account and what a surprise, my iphone is back to 1% per hour. Thanks a lot Giulia, you made my day.

mail: fetch, 3G off, wifi: on, BT:on, location: off

thank you frank...hoping this trick will be useful for everyone ! 😉

Desmond, I deleted my Exchange company email entirely from my phone and that appears to have done the trick. I didn't try turning off Push because I left the company very recently and was finally able to get their stuff off my phone this morning. (Restoring it as a new phone yesterday, of course, eliminated Exchange and thus the problem.)

In any event, it appears that the problem lies with Exchange - or more specifically, 4.3.3's interaction with some aspect of Exchange. If you've helped Apple isolate the problem so they can send out a fix, congratulations. You have the gratitude of thousands. Let's hope they move quickly. Having to turn off features to have the phone work correctly is a little like having to turn off "features" on your car so it will run properly. "I turned off 'Headlights' and that seems to have fixed the battery drain problem." That's Microsoft stuff.

Thanks again, Desmond. I hope others give this a try and provide positive feedback.

Message was edited by: johnfromtimonium

zZzyi wrote:

go to Settings > Store > Click on the ID > Sign Out

Thanks for that explanation. It's not readily apparent to click on the ID to get the sign out dialog so your help here is most appreciated. Now signed out. My question is: Apple seems to know how to sign us out from these forums after a period of a few hours of non-use, so I'm assuming they will find a fix to log us out of the Store on the iPhone after a short period of non-use if that will resolve the issue.

Since this issue cropped up I have definitely been keeping my phone near and on the charger constantly.

I sure hope that signing out of Store will fix the issue until an update fixes things.

Ken

I am experiencing the *exact same problem*.

I just got off the phone with Apple customer support and was told to do a "restore" and NOT recover my iPhone from a previous backup.

It's good to see that it worked for you, johnfromtimonium, but of course it's not really a solution since why would I want to use my phone with all my data wiped clean from it?

The worst part is that my phone is out of warranty (I did not purchase Apple Care). I was told that it would cost $199 to repair the phone (might as well get new one).

My main issue with the situation is that the problem was brought on by a software/firmware update provided by Apple. Now I'm expected to foot the bill for my "broken" phone - a situation which was caused by an updated provided by Apple.

By the way, my iPad has also been exhibiting problems since the iOS 4.3.3 update: lots of application crashing. Performing a hard rest and closing out all applications from the application tray apears to have resolved the issue. Too bad that didn't work for my iPhone 3GS 32GB.

Message was edited by: annatech Changed "iPhone 3GS 64GB" to "iPhone 3GS 32GB"

Did U sync your contacts , mailboxes and calendar when choosing "restore as new" option?

I can safely say that with my phone it definetly has something to with my MS Exchange calendar - not mail, not contacts but calendar. We're using Exchange 2003. I've done probably twenty restores - all as a new phone. And through trial and error was able to substaniate that at least with my iPhone 4, it was the calendar in Exchange which is now set to OFF (and syncing with a USB connection). I've got Push going, BT on, 3G on, location services on, logged in on the App Store - pretty much everything ON that folks here have suggested turning OFF. The phone was pulled off the charger at 5:30 AM yesterday (Tuesday) and I'm at 41% today (Wednesday) at 4:23 PM (nearly 35 hours). The only charge it has seen at all in this period was maybe the two minutes I had it connected to my laptop for a calendar sync. And I can duplicate the issue at will merely by turning the calendar ON. And fix it by turning the calendar OFF. And I've put all my apps and music back on the phone. I sent a bug report and will continue to sync my calendar through the USB connection until we see another update. Hopefully it'll be fixed then because I use the calenar a lot and syncing as I am now is a royal pain. Never experienced anything like this with my 3G or the 4 (which I've had since the day it was released).

Hi all,

I have some news on the phone issue, not sure if that helps.

Ever since I posted earlier about the issue and thank you for many of your for the discussions. I have tried the following and none seems to fix the issue. So I gave up and planned to get another phone for work for the time being till Apple addressed the issue.

Things I tried:

1. hard reset
2. restore the iPhone4 from iTunes
3. Calibrated the battery by running it to dead and charge it back to 100%
4. Delete some new apps that I updated or installed recently
5. turn off WiFi, Bluetooth and location services

None of the above really does anything.

So.... I decided to GIVE UP and planned to go get myself a new phone till next firmware release, so at least I don't have to worry I don't receive work calls!

And... the phone fixes itself after a full day of no mucking around by me.

Something I noticed after the upgrade and before it fixes itself:

1. phone is a bit more sluggish in performance (doing something in the background)

2. Facebook app runs extremely slow.

3. phone feels a bit warmer.

I think the iOS 4.3.3 must have introduced something new that requires the phone to do some indexing or checking. (purely my guess).

Due to this CPU load, it runs the battery down quicker.

The more I fiddle around with it, the longer the iPhone needs to catch up.

After I stopped stuffing around with it for about 1-2 days, it probably finished whatever it needed to do and now the phone back to normal.

Yes, even facebook app seems to be running ok again and the phone itself seems to run back to normal again. At least not sluggish as couple days ago after I upgraded to iOS 4.3.3

Anyway, hope this piece of info will help you. If not, get yourself another phone for now.

cheers,

Raymund

I can confirm this fix.

I had two Exchange accounts synced to my phone. I disabled the Exchange calendar sync and performed a hard reset. Using the "System Status" app (universal app, 99 cents), I noticed the following changes:

Total CPU usage went from about 0% idle, (with no applications running in background) to about 93% idle (with no applications running in the background. To put it another way, before, the CPU was pegged at almost 100% usage, now it's mostly idle.

In addition, my average load (1, 5, 15min) went from about 2.0, 2.0, 2.0 to about .05, .33, .26.

So, what will it take now to convice Apple customer support that there is a problem with iOS 4.3.3 and that a solution is required, ASAP?

Yesterday afternoon I deleted my Microsoft Exchange email account, before this I was charging 3 times a day and the phone would always be dead by the morning. This morning my phone was still running and I'd used the phone a lot the night before. My usage is also now how it should be with standby and usage showing different amounts.

The problems obviously lies with Microsoft Exchange software so please Apple address this as I'm sure that there are lots of people who use their iphones for accessing work emails.

Its not essential for me to do this but was handy to be able to keep up with things if on AL or off sick.

Same here. When I truned monitor off a minute and then switch on again. I saw 1% battery decreased.

Also, the iphone run significantly slow. It will sluggish when you pull down or pull up the contacts.

RESTORE to NEW iPhone just work in a few days. It will has problom again.

It also occurs in 4.2.2 and now.

APPLE! PLEASE HELP TO NEW UPDATE!!!!!