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Short. Answer. No
 
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LOL! And it is the correct answer too!!
 
I am on 5.0 and suffering problems with my battery since the update, somehow I just get around 5 hours of video playback and overnight I'm losing about 10% while doing nothing....Before I used to lose 1-2% overnight...

Today I'm heading to the AASP to evaluate the case because it's alarming...anyone else?
 
Mine has started playing up, as a test I charged it to 100% this morning made sure no apps were running, loc services and iCloud off, then put it to sleep. Returned from work and found it at 68%, I've also had times when the battery meter stays at 100% for hours and hours before suddenly dropping down to the 60%-70%.

Going to be dropping into an apple store soon and see about a replacement as I can trust it won't go suddenly flat on me.
 
As an update to my issues I've done a restore from iTunes and it's power usage in sleep is much more like it was before updating from iOS 4 to 5 (including 5 -> 5.0.1), will see how it handles being at 100% after the next charge.
 
And another update, charged to 100% over night, battery meter was stuck at 100% for about 3 hours in which I hardly used it, then dropped instantly to 73% from where it's been dropping at a more normal rate of a couple of % per hour of light use.

Off to apple store this weekend then 🙁
 
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