Battery Problems iOS 6

I noticed a significant decrease in battery life recently. Normally, my battery lasts for approximately 24 hours. The recent issue resulted in a completely dead battery in about 6-7 hours.

There are many, many blogs about the issue online. I tried one of the fixes and it seems to have worked. Nine hours later, my battery is still almost full. I went to: Settings/Mail/Exchange/Account

I wrote down all of the information and then deleted the Exchange account. I went back to Settings/Mail/Add Account and added the information I wrote down. It worked.