[Connie]

I'll go to camp during labor day holiday so I may not able to find a power outlet to charge my mp3 player. Do you have any portable charging station to recommend? I got one with AA a battery before but it's not working very well.

 

[Punnisher]

The simple solution is to get a Cowon D2 or 7. Those will last you all week. I guess the amp3 also lasts a long time.

But seriously, I'd say a device that outputs 5 volts to a female USB jack would charge 99% of players out there. It would have to have significantly more capacity than your player's battery for a full charge, but that's a given.

Ahh, something like this. I can't recommend this site or product, just something I found.

http://www.boxwave.com/products/batteryadapter/