Q: 5.0.1 update--even worse battery life

Hi, I have the same problem, my iPhone 4 battery life was good when I went to iOS 5.0 but since the update to 5.0.1 I'm seeing the my battery run flat within hours & I've turned off data, maps, etc..

Is there a link on how to revert back to 5.0

tia

Stan

I get several weeks of battery life from my iPhone 4 and a Mophie battery case.  I mostly use my iMac and iPad 2 for Internet and apps use.  I'm going to wait for the iPhone 5 before I buy another iPhone, as I am looking forward to LTE 4G speeds and a bigger screen.

Same problem... my iPhone 4S battery life was acceptable (not good, just not that bad) but then I upgraded to IOS 5.0.1 and suddenly it just keeps falling faster than ever. Had a total charge 3 hours ago, I haven't even used it and now I've got only 80% charge. Is there any way we can go back to IOS 5.0 ? Please give us a solution ASAP, I can't even go trough the day now.

What would help is if all with draining battery would give screenshots of all their app push notification settings, location service settings (apps AND service locations), fetch email settings. As well as their geographic location like timezone (cell tower locations near you a bonus), if you are living on a timezone boundry, as well if you are or have tested with airplane mode on or not, and if you have tried with Wi-Fi OFF (not on with no network, OFF) ALONG with cellular data OFF, does the device still heat up? Last but not least is there ANY iPod Touch (3 or 4) or iPad Wi-Fi ONLY (1 or 2) user users having the issue?

Did anybody else lose the vibration features hen they updated ?

I did :-(

Add me to the list. iOS4 was so much more energy efficient.

I was in game centre with data on not 3g for a sec, iPhone 4. 63% battery. After I exited game centre my battery was 58%... what a joke.

My iPod Touch 4 is perfectly fine and the battery life is great.  This is with most services on and push activated etc...  my iPhone 4 has been an absolute wreck on 5.0 and 5.0.1 .. I have now fully restored and have turned absolutely everything OFF even basic things that dont really drain battery,  and it drains at a crazy speed.  Just from doing things like texting.  Battery drains right before my eyes from barely anything.  It's ridiculous. 

I can only speak for myself but my iPhone4 will probably die and be re-charged 25 times before my iPod4 dies... at this rate.  iPhone is almost useless right now because I am too afraid to use it and not have enough battery for actual important calls... I cant do anything with it without watching it drain at an alarming rate.

Apple plz fix ur situation this is ridiculous

I'll add my complaint.  Even after installing 5.0.1 my iPad 1 16GB/wifi is apparently continuously reading location info to figure out the time zone and I'm squarely in Eastern time.  

For the record my iPhone 4s seems ok most of the time, knock on wood. 

Based on your situation that only raises one red flag, the baseband being at fault. Its the only difference from the iPod Touch 4 to the iPhone besides the vibrator which thats clearly not the problem or it would be annoyingly obvious. The baseband is the chip in the 3G enabled devices that handles cellular data, GPS, voice (GSM/CDMA), cell tower triangulation (this still works even without service). If that IS the cause the problem may never have been or not anymore, be iOS 5 itself but instead the baseband firmware as it runs it's own firmware, its labled as "Modem Firmware" under about settings, iPhone 3GS/4/4S is 05.16.05/04.11.08/1.0.13 respectively. While Wi-Fi only devices do not have the baseband chip in it at all.

From iOS 5 to 5.0.1 the only baseband  that was upgraded was the iPhone 4S from 1.0.11 to 1.0.13 while the 3GS and 4's did not change. That in itself could be the issue, 3GS and 4 users see no better results with the new iOS as their baseband didnt change (assuming this is the problem, I don't work for Apple) and most iPhone 4S users see even worse drain with the update as ther baseband went from 1.0.11 -> 1.0.13 with it, suppose 1.0.13 didn't fix it and is getting stuck in "loopholes" sucking more power? I know my 4S sometimes on iOS 5 would drop all signal bars and instantly restore signal a second later maybe once every 1 or 2 days, location didn't matter. Everytime that happened a see a "CommCenter" crash log in my diagnostics (i have mine enabled for a while to send things to Apple to help get fixes, it does not harm my batter). CommCenter is the software process that handles cellular and GPS functionability with the baseband. See where im going with this?

Since Apple is said to closely monitor these forums.. I thought I would spill my theory and to help shed light on this issue.

Battery on iPhone4 draining noticeably faster after upgrade yesterday to iOS 5.0.1.

Not good apple!!! Update is a downgrade we need a fix ASAP!!!

Before Update - My iPhone 4s would last 3 days on a charge

After Update - iPhone is at 50% at 7p on first day - this is worse.

Should have not updated.

Before the update my iphone was losing baterry at about 2 days,  after that some hours are enough, at about 7 hours, to battery is endind. Iam very sad about it.

My iphone is the 4 only