My Touch was plugged into my PC and had a full charge when the ice storm hit Kansas and took away my electricity. I forgot about it for a few days, but then unplugged it from the dead PC to discover the battery was completely drained. So two things might have happened. Without electricity the house temp dropped to about 50 degrees. The temperature might have affected the battery. I doubt this, though, as no other battery device in my house was notiocably affected by the cold. The only other possibility I can imagine is that the Touch discharged itself back through the dock connection to the PC. There are several devices plugged into my USB hub/ports on that PC, and I'm not sure how interconnected the power feed is over USB. I can imagine that some other device that found no power from the PC still found power from the connected Touch battery to draw from, eventually draining that battery. Any theories here? 4D.