Skype iOS4 battery drain

*anyone else experiencing battery drain after installing Skype iOS 4 update and launching it?*
i installed update last night, launched it found it pretty good, then went back to home screen, locked the phone and went to sleep with battery at 73%.
woke up this morning with just over 35% left in battery!
my usual battery drain on iphone 4 over night before installing Skype is 3 to 4%. this change of magnitude in battery drain is unacceptable!
on Apple's keynote, they said if you see a task manager, the OS isn't doing it right. then why are we seeing a task manager when double click home button? why do we have to manually close Skype app to get any form of acceptable battery life?
another thing: where's Skype's video calling capability?

I did experience this for a short time after upgrading to Skype 2.1.0.
I felt my phone was unusually hot. Here is how I analyzed the problem:
1) Run [A+ System Monitor|http://appshopper.com/utilities/a-system-monitor].
2) Click on "CPU" to show you idle/user/system/nice CPU usage. At the moment of high battery drain, you'll notice that idle is at 0% and system is at 70%. This means that the kernel is executing some task (most probably on behalf of a task (app)). Note: immediately after starting Skype, the CPU idle time will be at about 90%. Give it 1-10 minutes and you'll see it go down to 0%, if you're still having this issue at all.
3) Double-click the Home button to bring up the task bar. Notice that A+ System Monitor continues to run -- this is very important, and you can see what is in the task bar at the same time. Here is what this looks like:
4) Touch and hold down on top of the Skype app, until the apps in the task bar start to jiggle as the A+ System Monitor is running. Here is what this looks like:
5) Kill the Skype app and notice that the CPU idle will go up to 90% and your battery drain will diminish and return back to normal. Here is what this looks like:
I'm at the moment *no longer* experiencing this issue any more. This is what the CPU usage looks like at the moment and my battery usage is normal:

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Hi,
I just registered to tell you following:
I discovered the culprit that is responsible for the "semi random" battery drain.
@Home my Lumia 820 "shines" with a good battery life.
@Work:
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- no active background task (except standard entries: "extras+info" and Nokia Music)
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- display low
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- and every other suggested energysave option/action i could find on internet and here in forum -> except hardreset
With all above mentioned methods the battery still gets/got literally eaten away at work in IDLE.
I had it next to me with monitor off. Only checked once per hour and it died in ~8-11 hours. No call no message no nothing.
I was curious why it only happens at work: The difference of the network coverage is, that at home it is far more inferior. I have to search for a spot in my house where i can use it for calling somebody.
So Internet is not even an option (also no HSPA+ coverage throughout the village). Normally you would have less battery life at places with less connectivity. But not in that case.
I investigated further: on the way to work I use it for surfing ~50min - 1hour -> there i loose 7-9% of my battery. (very good result for driving with car => many connection losses)
As soon as I reach the city where the Lumia reaches the HSPA+ network it begins to drain veery fast.
HSPA+ needs much more power than UMTS and I guess normal HSPA!
I compared the behaviour with the Samsung Galaxy S3 (colleague's phone) and noticed a small but profound difference:
After you "wake" the S3 from idle it will show on the screen, that it uses UMTS and not HSPA/HSPA+... as soon as you start surfing or start an app that connects to the internet the S3 switches immediately to HSPA+. After a little time the Samsung switches back to UMTS.
The lumia behaves differently: It detects HSPA+ and uses it. Also in idle!?
I followed this obvious lead and wanted to disable HSPA/HSPA+ -> unfortunately it only lets you disable 3g as a whole (UMTS/HSPA) so I switched to 2G only.
While I am writing this my L820 is unplugged 6hours now and
after much heavier use than normal (mailing, surfing with 3g while driving 45min home [which dropped the charging-level multiple times faster than gaming!], 1h gaming, 10 minutes calling)
the remaining battery life is at 70% with estimated time remaining: 1day 7hours left (after writing the whole story it went up to 2days 4hours with 69%... but i guess thats because its idleing).
This behaviour is also the explanation why some people are affected and some aren't.
Summary of change: from initially 8hours idle and not even touching the phone -> to finally using it now with 70% after 6hours with 1day 7hours time remaining.
Additional info: I live in Austria (Europe; no kangaroos ;-)) --> so I have a Lumia 820 with the german firmware without the update, which was released in USA and Canada:
Revision: 1232.2109.1242.1001
So please implement a similar function like the Samsung S3 ... or just as a start: let us manually turn off UMTS, HSPA and HSPA+ separately! Surfing with 2g is no fun.
Sorry for the extensive and long story/facts ;-)
Regards
V4mp

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abbyreddish wrote:
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ive had this issue for a while now but havnt moaned about it until now but ive just had enough of this constant issue and want some help
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Can any one help me to fix this..:(

Typing in ALL CAPS is considered shouting, is difficult to read and is rude. Your help is very much appreciated, but please turn OFF your CAPS LOCK

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Let's say I'm playing Words with Friends, and also Angry Birds. I may want to go back and forth between the two. When I do so, the app that was in the background needs to reload again. There is no quick access or ability to quickly resume where I left off. And the reloading means that the app restarts from its opening screens...so if I was working on a level, I have to start all over again. And quite often, a game like Angry Birds will lag greatly when I first open it...moving almost in slow-motion.
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There doesn't appear to be as much of an issue if I'm playing one game but also have the music player open, or Safari, Notes, Reminders, etc. Those will resume just fine, though there may be some lag when opening/re-opening them.
So I guess the problem seems to lie within 3rd party apps, and not the apps that are part of the iPod/iOS.
The other problem is battery drain. I do all of my music listening via Bluetooth, so I expect that to have a greater impact than if I were using plugged in headphones, and I have location services turned on. But I have most notifications turned off, all email accounts set to manual and not push, screen brightness turned down and auto brightness turned on, "ask to join networks" turned off, auto-lock is set to 2 minutes but I almost always turn off the screen immediately after setting up my music listening (since I do so at work), volume limit turned on, EQ turned off, sound check turned off,
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I've installed (and recently uninstalled) a couple of battery meters from the Apple Store as well--freebies. Carat, Battery Doctor, Battery HD, Battery Magic.
Carat and Battery Doctor seemed to offer the most pertinent and accurate information so the others were uninstalled long ago.
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Even with absolutely nothing open or running, my used memory is generally still above 80%.
Carat, if anyone is familiar with it, shows a J-Score. My J-Score is 17, which means that my performance (according to Carat, anyway) is better than only 17% of the users who have Carat installed. In other words, 83% of people are getting better performance from their devices. It also has "battery hog" and "battery bug" sections. It doesn't detect any hogs or bugs.
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With iOS 7 on the horizon, I'm hoping the upgrade will offer some resolutions (I've read there is better multitasking), but considering how weakly my device performs at this point, I'm not entirely convinced that an iOS upgrade will actually make any improvements.
Thanks a lot for reading.

No, the app does not have to completely restart. It gets shifted in its open state into storage. Similar to how a computer uses the hard disk when it has insufficient memory.
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Hi hawknelson24,
It sounds like you have been on the right track. If you are looking for more options for troubleshooting your battery issue before potentially taking your Air in for service, you may find the following article helpful:
Mac notebooks: All about batteries
http://support.apple.com/kb/ht1446
Regards,
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