No more batteries, no charging time

sounds great, but how fast does it internally corrode,
anytime you see moisture and electricity mixed it generally causes metal to corrode,
if youve ever taken apart a radiator that was subjected to electrolysis youll,
remember the damage that a bit of current and moisture can do.
 
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I call BS. No explanation given on how just add water generates juice
 
if you want to see something similar , take a copper plate or clean section of copper pipe,
on your multi-meters neg terminal and a magnesium plate ,
on the positive lead, and dip both separated by a sheet of cardboard
in a cup of warm water to which you add two tablespoons of table salt you stir well first

https://www.ebay.com/i/182754915111?chn=ps

theres certainly enough current flow to brightly light a small led or incandescent light bulb, for hours or days depending on the size of the material mass and salt water volume
 
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