Shared from: https://www.den-uijl.nl/electronics/solar-panel-usb-charging/solar_COTS.shtml
Using a solar panel for USB charging
A simple way to make a solar USB charger
Not efficient, but it does work. Have a look!
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From @ocrdu
Shared from: https://www.den-uijl.nl/electronics/solar-panel-usb-charging/solar_COTS.shtml
A simple way to make a solar USB charger
Not efficient, but it does work. Have a look!