I don't know if this is something that is specific to the X or just Android period, but... I have been messing with my Droid X A LOT (can't put it down) ever since I got it on Tuesday. The battery has been pretty decent, but there is this one crazy thing I have noticed. It has happened on a couple of occasions including today. My battery was down to 30% by about 3-4pm. After a power down of the phone, the battery comes back with substantially more charge, without ever touching a charger??? At that time I power the phone off and then on and I came back with 50%. I've been playing with the phone since then and here I am 2-3 hrs later with 40%, still. That is one feature I really LOVE about the X!