American Troops May Become Their Own Batteries

If 120-degree summer heat and 70-pound packs weren't enough, American troops in Iraq have been getting sapped of energy by a surprising source: their own batteries.

On a typical three-day deployment, soldiers carry around 65 batteries — weighing up to 30 pounds — to power their night-vision goggles, flashlights, GPS and other tools. This is in addition to a significant amount of dead weight in body armor and Kevlar.

Now Lockheed Martin has stepped up to solve both problems in one go. It plans to turn a soldier's body armor into a power source, making the armor rechargeable and its total weight minuscule.

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