I built my own charger for the boys players..
I actually built one for the car 12v and one for 110v..

I stripped two usb connectors off of a blown motherboard..
According to google research and a wiki on usb a device will recognize the cable as a charger if the data+ and data- are shorted together..
I found an old +5v cellphone charger..(lots laying around these days)
I soldered the +5v to the appropriate pin on the USB motherboard connector and the same with the ground or common.
I also added a RED LED and 470 ohm resistor across the +5V and liberally applied
my favorite (( HOT GlUE)).
Same procedure for the +12V adaptor.

Warning: you have to make sure that the chargers put out only +5V and make sure to lookup the pinout of the USB connector for appropriate wiring..

The data+ and data- short was the neat thing as this is how most cellphones etc can tell its a charger they are plugged into..

Duane

http://carolinaboardrepair.com

For European customers, I'd recommend Ansmann USB 2 go charger (BTW, it can also charge IPods), with retail price USD10-12.

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