Solar Joule Thief —LEWEY
This is a close look at my 3rd ‘Automatic Solar Joule Thief’ “Lewey”. His is different than his brothers “Hewey and “Dewey”. He uses a Lithium battery and a super capacitor. Besides a solar cell for charging he also has an external charging port to recieve energy from other sources. This port also allows me to use a volt meter to see the condition of his internal battery and capacitor as well as the output of his solar cell.