Ok so I have been having a problem with my battery life. I was once one of the ATK users and after watching the videos of how android works deleted it off my phone and just let the OS do it's thing. Here's the issue I've been having. It seems like my battery has a good day and then a bad day. For instance, yesterday I ran it, almost constantly as I was looking at fantasy football stats with, GPS, WiFi, browser, apps, all kinds of stuff running and it lasted me all day. Today I am at work and we are not allowed to have our phones with us so it's been in stand by and the battery died, after being charged all night, after only being unplugged for 5 hours. The battery usage said that it was being used by phone stand by, idle, and android system the most. what would be causing my phone's battery to die so quickly?