Yeah my battery life has been noticeably worse since the update... but not HORRIBLE... I could easily go 24 hours on a single charge before the update and now I am at 14 hours and at 20% remaining... When hooked up to WiFi at home and work I have had my battery last 48 hours on a single charge (usually take it off Saturday morning and have to plug it back up Monday morning at work) I have disabled the automatic connections... I also noticed (and don't remember) but Domestic Data was not checked.... Domestic Voice was but not Domestic Data.. Not sure if that is suppose to be checked (I assume so) or unchecked???? I don't have a ton of Apps downloaded... When it comes to games and things like that I have my Nexus 7 for that... So for the most part I am only using Facebook, Chrome, Google+, my Banking App, Keyring, Twitter and that is it (on my phone) I actually rarely even use the "PHONE" part of the phone.. Texting way more than actually making or receiving phone calls.... Well I guess I will see if disabling auto connection helps any.. All I can say is it's still 100 times better than my original EVO that was rooted....