DMI Hydrogen Drone

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Using the rechargeable battery in the drones will only take 20 minutes. Using a fuel cell, you can move the drones for more than 2 hours. Doosan plans to expand its value chain in the fuel cell business to boost profits. As part of that effort, the company plans to showcase its products at the Inter Drone Show in Las Vegas in the second half of the year.

Doosan Mobility Innovation

As system gets heavier
fuel cell can fly longer than battery

As system gets heavier, Fuel Cell can fly longer with heavier payloads than battery depending on the high energy density of hydrogen. The capacity of battery is proportional to the number of cells, but because batteries are heavy, after a certain point, big batteries no longer guarantee longer up time.