I have upgraded to iOS 5.0.1 and still have terrible battery life

I need to say at the outset that I didn't have an issue with battery drain UNTIL I did the update.

I did the update using Software Update on the phone. It measured 55 megs. Update went fine but noticed within the hour that the battery was draining quickly. I tried restarting the phone and the battery percentage went UP from 95 - 97 %. Strange.

Overnight I noticed a drop of 7%. I tried to retrieve the full update from iTunes but was unable to because it already had the update. So I called Apple and was told to force the phone into Recovery Mode by holding the Home button while plugging the phone into the computer. This forces the update.

If you back up prior to this you can just restore the phone from that backup and save yourself some time .

Now, 3 1/2 hours later, with light usage, the percentage hasn't gone down at all.

If you've done the update, and continue to have these issues, you might want to try this as a solution. It is Apple sanctioned as their first tier solution.

Have you had an iPhone with a iOS below 5.0?

I think the whole battery issue is ridiculous. I downloaded 5.0.1 last evening and had my phone fully charged when I went to bed at about 130am. When I woke up at 730am (6 hrs on stnadby), I had 80% battery left. I had no other apps running in the background, but kept my normal settings (location on, wifi on). We shouldn't have to shut down features in order to preserve battery life. I agree that 5.0.1 is worse. If there is a true fix (delete and redo email accounts, etc), I can accept that, but Apple better come up with something definitive for provide some sort of permanent fix as this is unacceptable.

yep I'm in the same boat. Upgraded to 5.0.1 2 days ago and battery is worse. Let it drain down to power off last night, then fully recharged it overnight. I've had the iPhone 4S off charger for 1 hour 15 minutes now and am down to 81%. Nothing but running one simple app (PocketMoney) to update my accounts, and a little web surfing. No calls, no texts. I do have push email for 3 accounts, but really. This is really not OK. My previous iPhone 4 with iOS 4 was way, way better on battery life.

Just lost 2% more while I was typing this post. Now down to 79%.

I have an incident open with ExpressLane and will call them later today to see what's up.

I updated mine as well. My battery life has not changed. Just by typing this response I've lost 3%. The phone was on standby for 7 hrs last night and lost 14%. Most everything is turned off or down. I have noticed that the phone can get very warm at times. By the way this is my second 4S. I wish Apple would give us a clue to what the issue could be, are there defective batteries, is there something wrong with the A5 chip? Very frustrating!!

My battery although not great was ok with ios 5 on 4s.

Now after the update my battery is dropping a percent every 10mins without it being in use. How has this not been tested before the release of the update. Clearly I am not the only one.

My battery life is either the same or slightly worse after updating to ios 5.0.1. There is no way that it's better - it drops 1% every 30 seconds to a minute of just web browsing and I have all battery draining features turned off.

This phone will barely get me through a day.

Terrible Apple.

Same here with the update. It didn't do anything to improve my battery life on my 4S. After being fully charged, it dropped almost 15% in about an hour or so, with very minimal use. I used to be able to use my 3GS for a couple of days without charging, now I have to charge daily and that's with average usage.

After the 5.0.1 update (even tried a FULL restore, with setup as new phone), I still drop 24% battery charge overnight with no usage. It did nothing to improve it. Battery still drains 1% a minute during light/normal usage.

Going in for a 3rd replacement in a week if this keeps up. Very disappointed by Apple.

This update is worst fix to come out of Apple. I've owned every iphone type since day one. While past fixes always fixed the problem people had and many cases also improved the phone dating back to the first iphone to the iphone 4, this fix is a joke...it makes matters worse. Steve would be furious at the shame apple is pulling on us.I want to go back to my iphone 4...it worked. with my 4s I've had to turn everything off including Siri to just have enough battery life to make phone calls during the day.

Get to work Apple quite joking around create a real fix if not give us our money back so we can buy a new 4 for less money that works all day

100% loaded before i go to sleep, 10 hours later, no usage, 34% left.

***?

iOS 5.0.1 upgrade (for better battery life) has had the effect of caused my battery to now drain 10%-20% per hour. This is with all apps closed down and the iphone sitting there in standby. It's way worse if you use it for anything.

iOS 5 was fine. if slightly sluggish on myolder 3GS

This is definately related to the 5.0.1 update prior to this my old 3GS was fine, and I've never had a problem before with upgrades of the OS

Apple let us revert to iOS 5 now while you work on a fix and iOS 5.0.2

If the iPhone can't now last even a working day its usless as a mobile.

I have a 3GS and upgraded by accident to 5.0.1.Turned out that it increased my battery life significantly!
I did a little test.Had it charged up to 100% + trickle charge and enabled every power draining feature on the phone.
Wireless
Push notification on a Gmail and iCloud accounts
Location services on

Auto-brightness off at 60% brightness

Left 17 apps running in the background
EQ on
Sound Check on
And maybe some other things I can't remember.

Anyway I stoped the test at 33% left.The 67% used gave me:
5 hours,31m usage time and 1 Day,5 hours on standby.

So for me the update was a big improvement.I don't know why most people have issues though.

Cashboxx

You didn't by any chance do something different ?

Do you mind answering:

Did you update via wifi ?

Did you do any sort restart / restore?

My 3GS is now loosing 20% power an hour in standby.

Never any problems with this phone before the upgrade.

Chris

Yep worse now and some very odd happenings.

Now my phone fails to charge past 96% even though being on all night and the spectacularly fast battery draining really is quite impressive.