I've had my PRS-505 for abut 4 weeks and have been using it regularly. However, after each use I have been careful to switch it off completely using the Device Shutdown option to maintain battery. Last night when I was using it, the battery showed as full, however today it won't switch on. I've had it on the USB power charger for 1.5 hours and have just changed to a mains charger following advice on other threads. Am really not happy with the Sony support suggestion that the battery is dead and needs replacing - any advice gratefully given! The red light isn't showing.. my eReader seems dead!
