We just checked out Horizon Fuel Cell Technologies' personal MiniPak fuel cell charger at CES last month, but the company's already back with another product that promises to take fuel cells where you might not expect them: hobbyist R/C cars. That comes courtesy of the company's new H-Cell 2.0 hydrogen fuel cell system, which is an add-on kit that's designed to replicate the full-scale hydrogen systems now being used on actual cars. In fact, it can even be refueled using a model-scale hydrogen refueling station, which itself can be outfitted with solar panels or wind turbines for a completely carbon-free experience. No word on pricing just yet, but the kit will apparently be available on March 15th -- head on past the break for a quick video demonstration.