I stumbled across this site while looking for another site
and started reading all of this information and wanted to see what ya'll thought of power works??
"Power Works is developing and marketing products that convert human-supplied mechanical energy into electricity, without requiring access to any other external source of power. Products based on our patented technology can be used to recharge batteries that power other appliances (e.g., lights, radios, televisions, water purifiers), without needing to "plug-in" to grid-based electricity, a diesel generator, or an automobile cigarette lighter socket".
If you have time read through it because it gets really interesting.
YOU CAN'T OWN THE NIGHT IF YOU CAN'T CHARGE YOUR BATTERIES: VEHICLE AND HUMAN POWER SOLUTIONS AT HAND