Doosan presented its newly developed drone fuel cells at the 2018 International Drone Conference & Exposition (InterDrone) on Sept. 5-7 in Las Vegas. Doosan established Doosan Mobility Innovation in 2016 with the objective of developing fuel cell power packs for drones. Fuel cells utilize chemical reactions to extract electricity from hydrogen and oxygen. The cells Doosan presented at InterDrone were hydrogen fuel cells, and last for up two hours on a single charge. (provided by Doosan)