David Johanson, make their own hands charger that works from any source.
The base of this device is a Peltier module that produces 5.9 watts of electricity when a temperature difference of 180 degrees Celsius. To achieve such a temperature difference enough gas burner or alcohol. Or even a candles lighted by a heat exchanger. Everything you need to create the device yourself, you can buy a regular radiolavke, or order online. For enthusiasts author even provided a step by step instructions for assembly. Related Products :
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