Meet the Lycan Powerbox: a solar power generator with an interchangeable battery that gets you out of trouble in case of a power outage. After a few hours of charging from a solar panel or wall outlet, the Lycan Powerbox can power your gadgets and appliances in a quiet fashion. The device is lightweight and rugged.
Since the battery is interchangeable, you can have a bunch of charged ones ready just in case. The generator is powerful enough to power a TV, smartphone, laptop, radio, or refrigerator for hours. More information is available here.