http://www.getdatgadget.com/estream-...fits-backpack/
Came across this article and wondered if anyone here has used or experimented with hydro electric power? Either something bought or made? Seems like if you are in a place that has a lot of running water it would work better than solar power.
Came across this article and wondered if anyone here has used or experimented with hydro electric power? Either something bought or made? Seems like if you are in a place that has a lot of running water it would work better than solar power.
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