5.01 made iPhone 4 battery life worse

huh so get this, i know 100% that i downloaded the 5.0.1 upgrade through iTunes. I know this b/c i had to download all of my mp4's again and redo all of my folders and apps b/c of the new update. Well somehow my iPhone didn't recognize the update and Apple called me again this morning letting me know that my phone is still thinking that it's running 5.0. very strange!!! I have to speak w/ them this evening when i get home and have wi-fi and try to reinstall 5.0.1 again. so weird!!

I have the Verizon iPhone 4, and after taking 5.01 the battery drain is obviously worse. I used to go all day on an overnight charge, now it is completely drained after 4 hours.

This is my first Iphone and I am very dissapointed with the battery. I was OK with iOS5 and became terrible just after I upgraded it to iOS 5.0.1. Let imagine how funny you are when holding a great phone in one hand and the charger in the other hand all the time. So disappointed.....

After being a Blackberry user for a long time I finally decided to switch to an iPhone 4, which took a lot of persuading on my part. And Im beginning to regret it!!

I've had this phone 1 week and the battery life is absolutely appaulling. I left the battery on the phone to go right down and then charged it fully from there. i closed all my applications and have only been on a couple of times to check my Facebook. I took it off charge an hour ago and its already down to 85%?????

Ridiculous.

I'm having the same problem. My iPhone 4 was working great with IOS 5.0. Then 5.01 came out and my battery is lucky to last 3 hours. I went to the genius bar for help and the guy told me to try and reinstall the software, which I did. I'm still having the same problem. He told me it was a hardware issue if I was still having the same problem, which sounds like a lame excuse to me. This happened right after I installed Apple's poorly engineered update. This is irresponsible of Apple. If the update is not tried and tested then it should not be released, plus the fact Apple won't comment on a fix for this problem makes me upset.

Try deleting your exchange accounts and re-adding them. Fixed the problem for me.

Mine seems to have fixed itself now! I downloaded a battery doctor, ran it but didn't seem to help. Then let my phone run down to below 20% did an overnight charge and now the battery seems to be retaining its power as I would expect it to. Go figure?!

Still having issues with battery life.I really don't use my phone that much.just a couple 3min calls,quick look at email,facebook for a few mins.,weather report ,and a few short text I only get 4 1/2 hours total usage everyday.Have just about cut everything off and scared to use it much for I don.t want to run out of battery before getting home from work. What should the total usage be at?

My IPhone 4 battery life is horrible after installing 5.0.1. My battery life is at 35% 6 hours after a full charge with everything turned off and no phone calls. Yes Apple, it is a problem and you need to fix it immediately.

I've got exactly the same problem. Apple, please fix this. Why on earth these problems are occuring is beyond me. I'm massively frustrated by their failure to address the alert problem for ever and a day, even with transition to iCloud. This battery issue better not remain unsolved like the shared calendar alerts or I'm off to Android.

Like many others, I've been one of Apple's biggest supporters (I have a new Macbook Air, iMac, Macbook, iPad and an iPhone) and I've recommended Mac's into the enterprise as well as to personal friends which, I am sure like many others on this forum, has resulted in the purchase of many Apple products.

I am sure the others are feeling as hugely as frustrated by me in encountering these issues. Apple, don't ignore this because you will almost certainly begin to lose your loyal customer base.

I am having problem with battery life on iphone 4 since upgrading to 5.1. It seems like 15%-20% down in every hour without using it. Tried everything... stop Notification, icloud., wifi, Brightness.. doesnot help.. REALLY FRAUSTRATED.

Same problem here. Updated to 5.1. Started losing battery power very,very quickly. Turned off all notifications, wi-fi, web-sessions, etc. No change. Allowed battery to drain down to nothing...didn't help. Apple, we have a problem here!

RighterofWrongs wrote:

Same problem here. Updated to 5.1. Started losing battery power very,very quickly. Turned off all notifications, wi-fi, web-sessions, etc. No change. Allowed battery to drain down to nothing...didn't help. Apple, we have a problem here!

https://discussions.apple.com/thread/3484755?answerId=16868723022#16868723022

follow above discussion_ look at athe 7th post by davidch. it worked for me.

I suffered the same thing, I could literaly watch the power drain away. I tried turning off wifi, bluetooth, 3G, push email, GPS and still it would lose 30% durning the night. What I did was "reset all settings" in "general Settings" this does not delete anything like doing a factory restore does in itunes so you don't lose any apps, music, videos, emails etc. When it boots back up it will ask you if you want to restore the phone "as a new phone" "from iTunes" or "from iCloud". Restore it as a new phone, don't worry you wont lose anything, you will have to choose a language, wifi, gps etc and the phone will return to default ringtones etc but it wont delete anything. Once you have done this run the battery down until the phone shuts down, then plug it in and leave it on charge all day or over night. Last night I went to bed with everything switched on apart from bluetooth the battery went down 3% over 8 hours.