<I'm a newbie here, I did just notice that I'm in a thread for EVO 3D, but hopefully someone has an idea anyway>
My EVO is just over a year old. It's worked phenomenally for me, battery life and all. Until recently anyway. For about the last month, almost every day the battery will just crash over 1-3 hours. Not relative to time of day or anything. It will be a steady slow drop in power over time, and then just plummet. I noticed today on the battery graph that it seems to coincide with "Awake" time being used. I have pretty much every battery saving measure going for me that I know of. No GPS, WIFI, 4G, background data, etc. etc. Nothing running when it crashes. I have watchdog, and it shows nothing using my CPU. Does anyone have any ideas what could be going on? I don't know if I had an update or anything that could be causing it, but I really can't see what it is, and why it would be all of a sudden. I've even replaced the battery with a brand new one.