iOS 5.1 Batterydrain issue/problem

I really can't believe the issues people are having. As is was updating, I started to research the new iOS and saw people were have battery issues. Thank god I pulled the plug 9 minutes before it was competed. It makes no sense that people should have to do all these things to try and get their battery to not die so quick. It's not fair. How does something like this happen? Wouldnt apple test the iOS on a bunch of phone and study the results prior to releasing it? Seems crazy to me. I'm afraid to roll the dice on this one so I'm sticking with 5.0.1. Until I see some major changes. Pretty disappointed.

Apple has not completely solved the issue that I am aware of. They are working on a fix and part of that was suppose to be in iOS 5.1. However if that did not help one tip I have which I've used from day one is to purchase a battery case. My personal favorite is from Mophie. You can find them here: http://www.mophie.com/iPhone-4-s/47.html. It is a little bulky but if you don't mind that it will give you from my experience up to a full two days of battery life with brightness at 2/3 and all notifications and location services turned on. I love the case. Not for everyone and shouldn't need to purchase one but it does help tremendously. Especially if you use your phone continuously during thr day/night as I do. Good luck.

I have a 4S. Upgraded from 5.0.1 to 5.1 a couple days ago and battery drain is severe. Yesterday I X'd (closed) all superfluous apps (games, etc.) This morning with my phone in standby (no calls/texts/browsing), battery went from 100% to 60% in about 3.5 hours!! With 5.0.1 my battery would lose about 10% in this amount of time.

Am performing a "restore" now and will report back with results.

{sigh}

My battery drain issue turns out to be related to iMapMyRide app (and I assume other iMapMy... apps). If I use it, i have to force it closed when I'm done of my battery drains flat in only a couple hours. Hopefully they have a fix soon.

Make sure you tell both Apple (http://www.apple.com/feedback/iphone.html) and the iMapMy people about your findings.

wrrn wrote:

I have a 4S. Upgraded from 5.0.1 to 5.1 a couple days ago and battery drain is severe. Yesterday I X'd (closed) all superfluous apps (games, etc.) This morning with my phone in standby (no calls/texts/browsing), battery went from 100% to 60% in about 3.5 hours!! With 5.0.1 my battery would lose about 10% in this amount of time.

Am performing a "restore" now and will report back with results.

{sigh}

Results from my test:

Performed the "restore from backup" procedure. Charged phone to 100%. After 3 hours my battery drained 8%. That's less than 3% per hour as opposed to the almost 12% per hour before. Plus, this time I used the phone's voice, text, email and browsing.

What a relief! Just hope this holds.

3% per hour is too much. Unfortunately you need to Restore as New iPhone, not from a backup. That solved my problem and my drain is 1% or less per hour.

Property wrote:

3% per hour is too much. Unfortunately you need to Restore as New iPhone, not from a backup. That solved my problem and my drain is 1% or less per hour.

What are the ramifications of doing this? It sounds like receiving a new phone and having to reinstall all apps, accounts, settings , etc. Is this the case?

I had the same problem, after updating iOS to 5.1 my battery drain 50% within few hours in the stand-by mode.

However, I tried to reset my 4s as a new phone but it didn't work. So, my last try was to reset my hole 4s completly. (all App were gone, "just like a new phone")

Had to install all my app's totally new (no using existence backups, took me 2 days) but it was worth. My phone is running as usual, and the stand-by and usage mode are working like it should be. "it is not a guarantee that it works for everyone" but in my case it does and if you tried all option it is a try worth I guess.

Good luck.....

So, what's the difference between a "reset" and "restore"? I've looked over the support pages, but would like some clarification on how to perform these different methods.

Anyone know absolutely? I really don't want to do this based on good-hearted guesses.

Reset can be done in Settings / General / Reset / . It does not remove apps or other content from the phone. Restore is different: can only be done when connected by cable to iTunes. Restore reinstalls the operating system entirely. If you choose "Restore from Backup" it will put all your apps, content, and settings back exactly as they were. But if you do that, some bugs that were eating battery can survive the process. Restore as New Phone makes you add all the apps and content back yourself, manually. You are likely to get a cleaner phone without the bugs you had before. But it is labor-intensive.

The easiest way to do a Restore as New Phone is to take screenshots of your apps and put them into iPhoto or somewhere you can refer to them after the restore is done. Once the operating system is installed in the phone, with the phone still plugged into iTunes, just go the Apps tab in the Phone view, and select the apps from your list that you want to reinstall, then arrange them on the phone's home screen using your computer screen. Takes about an hour to do 100 or so apps. Then in the other iTunes / phone view tabs tell it what playlists / other content to put back in the phone. It is not difficult if you use iTunes, rather than trying to do it on the phone.

Thanks Property, for the succinct explanation. I'll ponder this.

The email work around did not help. I had to do a clean restore, twice, the first time it did nothing. Down side, I'm still getting my phone back to working order.

10:30am 100% Battery

ZERO WiFi usage

MINIMAL texting (no more than my usual amount)

4:00pm 42% Battery remaining.

***?!!? iOS 5.1 updated over WiFi a week and a bit ago. I'm loosing 10% battery life per hour on average now. My Mophie Case is the only reason I'm able to survive a full day with my phone. And even that, I'm supposed to be having 2 days of phone life with this combo.

What the **** is apple doing now?

Mine is worse than before... I was having the drain issues since buying the phone in oct of 11. I have found the icloud and the bluetooth are draining my phone. I deleted the icloud on phone and have to turn off bluetooth when not using it, as it drains the phone in less than two hours. I find this phone almost useless to have to turn off all the features you need... and then go in and turn them on when you need the phone. This is my first apple purchase and guarantee my last!!