This notebook-sized solar panel is powerful enough to charge two iPads at the same time. The portable panel is foldable, lightweight and thinner than a mousepad. Just place on the ground or on a table, plug-in and point directly at the sun, no batteries needed.

Invented by Dean Sala, CEO of Suntactics, this device does not only charge at the same speed as a wall socket, but was designed to be waterproof. This universal USB solar charger was designed to withstand critical damage and still work as intended. This gadget will charge any smartphone at full capacity in under 2 hours and tablets around 3-4 hours; it can also charge cameras, e-readers, music players, speakers, storage batteries, flashlights, practically anything with a male USB connection.