Two Ni-MH batteries can be charged with a 2.8 volt 60 mah solar panel, and panels with less than 5 volts and more than 3 volts can be used. No charging chip required....
How to design a solar panel as a power supply that outputs a 3.3V voltage regulator?
Two Ni-MH batteries can be charged with a 2.8 volt 60 mah solar panel, and panels with less than 5 volts and more than 3 volts can be used. No charging chip required.
