All of the sudden I am having horrible battery life (phone dies within a couple hours). I checked spare parts and sometimes it puts calendar above android system for partial wake usage or if not above it is often right under android system and using way more juice then anything else. I don't even use the calendar, it is not even a widget on my phone (partly because I noticed this problem once before, but that time it corrected itself). Why would the calendar be using so much battery and what can I do about it? Since it's an app. that came with the phone it's not like I can just delete it. Any help or ideas would be greatly appreciated!!