I’ve struggled with iPhone Exchange ActiveSync and premature battery drain combined with overheating of the device.  The only thing I’ve found that seems to be the answer for me is at: http://danisrael.scekc.com/it/iphone-suddenly-drains-battery-due-to-constant-push-polling.html http://dan-israel.com/blog/it/iphone-suddenly-drains-battery-due-to-constant-push-polling/ (Corrected Link) This link explains an issue with Calendar items causing continuous contact from the iPhone to the Exchange Server and gives […]