For some reason by battering isn't lasting the day. I have checked checked to see if there is an app running; checked CPU use, checked running apps; with Android Assist, cleared apps from the "recent apps" list. I recently installed "e Mobile Security"; but I don't think that's it because I think I started noticing this problem before I installed it. The other strange thing; and I don't know if it's related, is; a couple of times recently I had to actually remove the battery to get the phone to turn on. This morning, when I took it off the charger it wouldn't turn on but the green light was flashing at the bottom. After pulling the battery it started right up; and the green light was no longer flashing; and the battery shows a full charge. Is it possible that it's the battery?