Last May, we heard about how Horizon Energy Systems was developing a hydrogen-powered quadcopter that could (hopefully) stay airborne for hours at a time. Soon, however, that drone may not be the only one doing so. That's because Intelligent Energy has unveiled a fuel cell/battery range extender that could become standard equipment on third-party drones.
Drones could utilize hydrogen fuel cells and fly for hours with recharging capabilities in a few minutes
