The Hymini Biscuit is a compact portable charger for two rechargeable AA-sized batteries. Aside from a solar panel for harnessing energy from the sun, it also has a fan which uses wind to recharge the batteries. The AA-batteries, in turn, power a USB port on the side, which can in turn be used to recharge any gadget you have that supports USB charging. This makes it a great tool to have when traveling, especially when you are in the great outdoors. What’s more, you can use it as a regular battery charger even without sun and wind simply by plugging it into the wall socket through an AC adapter.