Just get an iGO charger setup (
www.igo.com).
YOU can put a tip on to charge the PRS-600 using the barrel power input. Or a tip with micro USB to charge a PRS-650 or BlueTooth headset or newish BlackBerry. Or a mini USB to charge an older BB (I don't remember if I every charged my PRS-600 using the mini-USB), or a connector for an iPhne or a Plan, or any other mobile device.
I got the Charge Anywhere, which is a wall cahrger, wtih a built in battery, so once it is charged, you can charge your reader or phone on the go.