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Turning off WiFi does help, but it's still not great. I really don't want to have to restore my device to get better battery quality, but I may have to.

Wouldn't have to do that if apple would pay attention to their customers and fix this problem. But instead they insist it's a "feature."
 
I've had this same problem with my 3G 64GB Touch. After some experimentation, my current hypothesis is that some apps (and the new iOS) don't handle multitasking well. If my battery is draining fast I open multitasking by clicking the home button twice, hold down one of the icons until it wiggles, and delete all but mail, safari, and a few other standards. I haven't done this systematically enough to know yet which apps cause the problem, but if I do this my battery use goes back to normal.

I got on to this one day when I "closed" safari after it got "wonky" the usual way by clicking the home button once then the top button, and putting the Touch in my pocket. Shortly my pants and leg got very warm so I pulled it out and figured that safari must have kept running and doing something nasty. I turned the Touch off by holding the top button, but when I restarted and checked the multitasking list safari was still there along with the others, which surprised me. I deleted all the programs as above and everything was fine.

I am hoping that with continued upgrades of the apps and the iOS4 software this problem will eventually go away because it's a pain in the butt. Until then limiting the apps running in the multitasking queue seems to work for me.

I would appreciate it if others would test this hypothesis and let me/us know.


Mooch
 
I'm sorry to say that the battery life issues are definitely because of multitasking. I disabled multitasking on my iPod touch 2nd generation after noticing poor battery life yesterday and even after heavy use, it is still around 50% battery.

I'm even using Backgrounder for Pandora and battery life is still almost perfect

Apple needs to fix this.
 
I'm sorry to say that the battery life issues are definitely because of multitasking. I disabled multitasking on my iPod touch 2nd generation after noticing poor battery life yesterday and even after heavy use, it is still around 50% battery.

I'm even using Backgrounder for Pandora and battery life is still almost perfect

Apple needs to fix this.
It seems that and push notifications are both causing this problem.
 
Turning off push notifications has fixed the battery problem on my 64 GB iPod Touch. It would drain from full charge to zero, while off, in about 36 hours. This after upgrading to iOS 4.0.

I'm glad I saw this thread. I was ready to bring it to the Apple Store. Thanks everyone for all the input :)
 
I don't even have any apps that would use push notifications...so that is not a problem for me.
Whats the purpose of push?
Turning off push notifications has fixed the battery problem on my 64 GB iPod Touch. It would drain from full charge to zero, while off, in about 36 hours. This after upgrading to iOS 4.0.

I'm glad I saw this thread. I was ready to bring it to the Apple Store. Thanks everyone for all the input :)
Glad to help! :)
 
How do you disable multitasking?


Mooch

Unfortunately, if you have multitasking without jailbreak, you can't disable it.

However, if you did get multitask from jailbreak, then run the jailbreak process again with Redsn0w, and uncheck multitask.
 
iPodtouch battery error

hello all,

My ipodtouch battery notifications is not drop down sequenced..
Eg; 86 to 85 84 83% ... not like that
battery sign shows up and down 86% 89% and then 80%.
if u have any idea, please share how to maintain battery sign?

My specifications is
OS: OS4
Gen: 2nd generation MB version 8GB
Jailbreak with redn0w 9.5b
 
I have this problem too. My battery life was great before iOS4 but after I upgraded I can barely use it, I charge it over-night and its basically flat by the following night with little to no use.
 
I can only repeat what everybody else here says. My battery life went down bout 50% after upgrading to iOS4. But if I do a restore and a sync I know my apps will reset too. But what about my billions of books in Stanza? Will I have to download the whole bunch again?
 
For anyone who cares :) I'm doing a test now. I turned on fly-mode, but the wifi is still on, and I turned off push notifications. The time is 4.45 pm danish time and I'll see how long I can surf around on the battery before it goes down. Exciting, don't ya think :)
 
Well.... Maybe wasn't that exciting. But I surfed 4 hours and 30 minutes with loads of warnings of the 20% battery time left. But I was courageous and went on surfing till the ipod died with a silent sigh.
4 hrs and 30 mins suck in my humble opinion.
 
Well.... Maybe wasn't that exciting. But I surfed 4 hours and 30 minutes with loads of warnings of the 20% battery time left. But I was courageous and went on surfing till the ipod died with a silent sigh.
4 hrs and 30 mins suck in my humble opinion.

Try it with all but the app you are using turned off by double clicking the home button, holding a finger on an app icon until it wiggles, and then touching the x. It's a pain in the butt, but we're hoping that 4.1 fixes the problem. If not, I'm going back to 3.x.


Mooch
 
Well.... Maybe wasn't that exciting. But I surfed 4 hours and 30 minutes with loads of warnings of the 20% battery time left. But I was courageous and went on surfing till the ipod died with a silent sigh.
4 hrs and 30 mins suck in my humble opinion.
Thats pretty bad. Especially when the battery was supposed to be 8hrs.
 
I went through the first page of this thread and nearly died thinking about what a nightmare restoring my iPod would be.

Then I saw rajobey's post:
Hope this is helpful to some people. I was having the same battery draining issues since upgrading to iOS4 on my iPhone 3g. Apparently there's an issue with Exchange connectivity that is resolved with the following patch:

http://support.apple.com/kb/TS3398

Applying this also stopped my battery drain issues, so the two issues look to be related to the same thing.

Note: I couldn't install the patch directly using Safari on my iphone as suggested, kept getting "unknown error", but if you access it from you desktop & email it as an attachment to your device it installs just fine.

It doesn't seem many people have acknowledged this. Did anyone else try it? I just installed the patch on my iPod, restarted, then waited for it to finish syncing before I unplugged it from my computer. Will be crossing my fingers and toes. I really hope it works; I'm not sure I'm willing to sacrifice all my hard work on Angry Birds...

And if anyone else does try it, you should heed his note. I wasn't going to visit the Safari option, because emailing the file as an attachment and installing it that way seemed much simpler. And it is really simple.
 
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