The Realtree Xtra Camo Nomad 7 Solar Panel from Goal Zero is a portable and foldable solar panel that will directly charge small electronics like smart phones and GPS units, or Goal Zero battery packs. This unit puts out 7W of power, and you can chain multiple Nomad units together to increase wattage output for added versatility.
The solar panel features a standard USB port for directly charging devices, and an 8mm port for power packs. A removable kickstand helps aim the panel for optimum energy production, and features a handy zippered pocket to stow the charging cables. The weather-resistant design has loops to secure it to surfaces like tents for catching optimal sunlight, or backpacks to catch a charge during a hike.