iOS 5.1 rollout causing battery drain?

There is a glitch that has been annoying me for some time and still wasnt fixed in 5.1 , when I charge the phone 100% & then unplug it I find that the standby is equal to usage which causes battery drain even when I'm using the phone the standby is still equal to usage the only way I found to solve this problem was enabling 3G after charging the phone and leave it in standby for about 10 minutes so check this maybe you have the same problem

I wish Apple would give us the option to not automatically download updates. 😟???....I choose to update my iPhone all the time it does not automatically download updates, unless you have it setup like that....

I have also had the issue where the phone is draining battery at an alarming pace. I got the original phone replaced by apple and the new one is doing the same. I went from 100 Percent to 90 percent in 20 mins without use.

My battery life is awesome!..everything turned on, 20 hours since last charge and still got 60% battery!

It is not a good idea to close all your apps, maybe the ones that have GEO services enabled.. but you should leave the rest. iOS is very well at handling the suspended processes and it actually improves your battery life ( + making your life easier.. ).

I suggest downloading the developer tools and using Instruments to log power usage of your iPhone, maybe you can find out what is going wrong

Also I think you might want to try some default iOS problem solving measures, e.g. restoring your iphone using iTunes and calibrating your battery by completely draining it, which by the looks of it shouldn't be a problem at all 😀

But then , who would do the beta testing?

One thing I noticed is that after 5.1 update, everythign and anything on the phone is turned on.

You need to sift through the settings and turn off all the non-essentials in location tools:

compass calibration

diagnostics and usage

location-based iAds ⚠

That purple arrow icon ***** energy.

Same here. 100% to 24% in 3 hrs after only doing a few emails... Have you had any help from apple?

They replaced the phone and I am having the same issue with the new one. I plan on going to the apple store again this week and see what they can do for me.

IPhone 4, no problems with battery before updating to ios 5.1 but two days after updating. My battery was draining ridiculously fast even in Standby mode. For example, I left it laying there with around 90% charge, 6 hours without touching it, came back and it only had 35% left. All the settings are as I had them before the upgrade (wifi, location service, 3G all on), but it was never like that before, it would maybe only go down by 5-10%. Even in normal use it is draining much faster than before, but hard to quantfiy as I use in different ways all the time, I just find now I have to charge it much earlier than before.

My wife who uses an iPhone 4s and updated to ios 5.1 the same time is also complaining her battery life has worsened signifcantly after the update.

Ed after 4 days mine is fixed. I did a reset on the phone and then a restore via itunes. I did this twice and then yesterday just did a reset. the phone was also running really hot... Interestingly I first new the situation was resolved when I noticed the phone was not hot. So not sure if one or all of these things resolved the issue or whether it was just time. Anyways back to a not great but manageable battery life. Hope this helps...

Hi everybody,

I had no battery issues before 5.1 on either iPad or iPhone, but after the rollout and update my phone and pad were dead after significantly faster time.

My iPhone after only 6 hours of use (before it would last in similar conditions about 9-10 hours)

My iPad after 2-3 days (before 7-9 days)

I tried to turn of one thing after another and finally after turning off wi-fi it went back to normal.

I noticed that both the phone and pad where accessing the net over wi-fi approx. once a second and I think this causes it.

Now I only use 3G as I have an unlimited dataplan on both devices and the speed is about 1-10MB depending on network reception and usage.

Just to let you others know what helped me.

I'm having exactly the same experience. I had to take my first 4S back to the store for a replacement. All was then fine with the new one until it downloaded this latest OS and now the battery is draining completely in less than 5 hours with everything apart from 2G off. No Siri, location services etc. Is there any way to restore back to before the update ?

I have the iphone 3GS, my phone sucked on battery life to begin with lol, it would die completly in 3 hours after a full charge, without being used. After I updated to 5.01 well it really drained fast to the point I couldn't even turn it on. I come across another forum site with a suggestion of what this other guy did with the same problem. I reset my iphone, then I backed it up with itunes and done a restore on my phone. I also turned of wi fi. And WoW what a difference!!! My phone went from totally dying in 3 hours, to awesome battery life. I done a full charge at 10 pm last night and at 8 am my battery was down to 97%....let's say my mouth dropped lol I was shocked. Turning off wi fi really helped, it seems to drain the battery super fast. Not sure if doing the reset and restore helped though. I was just folowing another forum users advice on what he did to help it, and he said it helped. My phone still drains with usage but not near as much as it did before. I can actually turn it on, and not have it be just a decoration on my desk. If I turn on wi fi it drains 2x faster.