What about using solar powered batteries?
What do you mean by solar powered batteries?
Batteries are normally chemically powered.
You can make a battery from a bottle or water, other containers,
a hole in the ground, and many ways.
However good batteries of any capacity are not cheap and usually out of
reach of primitive countries.
I have a friend that travels to primitive countries and is building a cheap
stove so they can cook supper. It takes an average of 6 hours hunting and
gathering junk sticks and wood to cook supper each day. The cost of the
stove is about $ 20.00
It could be easier to give them a bicycle with a generator or alternator
installed.
Wayne
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