Currently Being ModeratedNov 20, 2012 10:03 AM (in response to chaaker)
So after getting two in a row that had this issue, I started looking at the software or services, as odds are I did not get two bad batteries.
The Apple rep that had examined my diagnostic logs indicated that the DirectAccess process, which he said had something to do with fetching emails from ActiveSync accounts was runaway.
I have also noticed that when the phone gets hot and the battery starts running down very quickly, mail starts to act squirrley. However, we have thousands of iDevices deployed in our enterprise all leveraging ActiveSync to access mail from our Exchange 2010 servers. If this was an issue, the helpdesk and our users would be howling.
I then wondered if this was an issue with a corrupted mail item in my inbox. I did an informal straw poll of our existing iPhone 5 users and none of them were also experiencing this issue. Also, it only started about three weeks ago -- perhaps something untoward met my inbox.
So I moved all of my mail from my Sent and Inbox to my Exchange 2010 Archive Mailbox -- you could also just delete it -- or move it to a PST depending on your personal situation. I had around 8900 items in my Sent and 8411 in my Inbox.
Since then I have had absolutely no issues with the battery or hotness in the last 24 hours.
We'll see how it goes from here.