solBAT II Solar powered back up battery and charger for iPod & iPhone. Output: 5V; 500mA . Use your existing USB cable to charge most devices including iPod, iPhone, MP3, Blackberry, cellphones and more, Internal 1500ma lithium-ion battery stores power for when you need it, Includes windshield cradle and universal carabiner mount and Also includes USB charging cable for rapidly charging from any computer or USB charger