The Nomad 13 Solar Panel from GoalZero is a portable and foldable solar panel that will directly charge small electronics like smart phones and GPS units, or GoalZero battery packs like the Sherpa 50. You can chain multiple Nomad 13's together to increase wattage output for added versatility. The solar panel features a standard USB port to plug your device's charging cable directly into. Use the 12VDC output, with included car/vehicle plug adapter, to charge electronics like satellite phones. The weather resistant Nomad 13 has loops to secure it to surfaces like tents for catching optimal sunlight, or back packs to catch a charge during a hike.