[jye75]

Mine dropped drastically too one day. Just had it in my case on my hip, and I felt it getting warm, took it out, and the battery was drained almost all the way. Level dropped from 65% to less than 10% inside of two hours. I just turned off the phone, restarted it, and plugged it in to charge. Hasn't happened since, so I chalked it up to roaming issues. Maybe a cell tower was down at the time and it couldn't do anything but roam.