The
Suspended-load Backpackconverts mechanical energy from walking into electricity up to 7.4 Watts more than enough energy to power a number of portable electronic devices at once.
That sounds great, and I love to walk. However,
A typical soldier already marches into the battlefield carrying 80 pounds of gear...The amount of power generated depends on how much weight is in the pack and how fast the wearer walks. The Penn researchers tested packs with loads of 40 to 80 pounds and found that the wearer could constantly generate as much as 7.4 Watts while moving at a steady clip.
Eighty pounds? I couldn't walk too far carrying that, much less function as a soldier.
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