I'm going to europe soon, and i needed a way to keep my ipod powered without the ac charger, since the sockets are funky, and i'm not bringing a laptop. also, adapters are a good option if you can find one. I got this little number, the iturbo turbocharge. pop in a AA battery, and away you go. not that bad for 20 bucks. my other option was a battery powered usb hub http://www.newegg.com/Product/Product.aspx?Item=N82E16817804001&Tpk=CPH420MP but that seemed a bit much for what i needed. if you need power in a weird situation, try it out.