Originally Posted by Mike's Place
Correct! The Sony PRS-505 does not come with a charger ??? But it charges up just fine with the usb cable to the computer. I own a charger and haven't opened it yet because I'm happy with usb charging (albeit charges more slowly). But I imagine if you are listening to music and without your computer it would come in handy to have a small charger.
The 505 *sometimes* charges by USB. Best bet is to use a PSP charger, which will charge any Reader model at any time. Plus, there are many compact and inexpensive PSP chargers out there.