Hello everybody. I have a broken bag, and I decided to make a generator to charge the phone. You can twist this generator through the gearbox of a windmill or you can adapt the energy of water. The generator itself with a charging module. When I turned it with another drill at low speeds, the output was 5 volts.
And here is the design for water.
You can use two pulleys from a broken washing machine and its own belt.
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