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Alternative-Energy Robots
Hydrogen fuel cells could be the Holy Grail of power sources for military robotics applications.
By Mark Ingebretsen


Power storage is the Achilles’ heel of the personal electronics world, the green-car world, and maybe the robotics world too. Home and office service robots can head back to a recharging station when their batteries run low. But charging takes time, and a power hook-up isn’t always available. What’s more, transporting extra batteries may not be the best option in all situations. U.S. soldiers must carry 80 pounds of batteries just to keep a unit’s radios running, according to the journal Environmental Health Perspectives. Robots, particularly those used by the military, would consume even more energy.

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