Originally Posted by Agama
My Sony PRS-300 will not charge directly from any USB mains charger but only from a USB port on a computer. This is a restriction made by Sony and may also be the issue on your 505. I think this was meant to encourage us to buy Sony's expensive dedicated non-USB charger.
I actually blame Apple more all the chargers compatible with Apple tend not to work on the T1 and some other devices, you can get round it though if you have a charger cable like the ones that come with powermonkey, Freeloader etc
I use one I got with the swiss charger pack and it lets me charge the T1 from anywhere, you will definitely have problems if you use the Sony supplied cable including the device crashing.