i did just that a few times.You needed to let it discharge completely a few times..then charge it up completely..battery life much better after doing this..worked for me
To be fair, this drain issue seems to be a bear to track down. So many people are having acceptable battery life, even with the drain like I am. Because people's usage varies it can be really hard to pinpoint, and if the issue is in fact rogue apps, that can be hard to track down in manufacturing. Nokia I'm sure are looking into it, but it could just as easily be a WP8 issue and if they came out and publicly said we are looking at battery issues then they may take the blame when it's not their fault. Might be better to not say anything till it's figured out.
Well considering Nokia and MS are in a partnership till death do them part (which may very well happen), why not come out with a joint statement saying they are working together to determine the issue?
We are investigating, but we currently suspect that some applications may be using power when left running in the background. While we learn more, we advise people when finished with an application to navigate away using the back button as this will close it rather than leaving it active in the background.