Showing how with "off the shelf" TEG/peltier modules (only 5% harvest efficiency) it is possible to generate enough energy to power small devices using ONLY the body heat.
Although, generating 5V requires additional modules or cooling with ice, it is possible to generate it without them. However it requires more complicated circuitry and it would generate much less current (5mA) and even shorter charging spikes when connected to a phone. Therefore, I am using more simpler setup.
The fast charge/
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