This is my first contribution to this forum
I got tired of those cheap solar USB chargers that never works so I decides to make my own.
The panel I made is a bit of overkill for the rest of the circuit as the charging done is only 5w from my boost converter. But this makes it work in partly cloudy weather as well as in bright sunshine.
Panel consists of glass/eva/solarcells/eva. Didn't use tedlar as I couldn't find it
The Boost converter boosts voltage from 0.7V up to 5V so it could work with as few as 2 cells. Had the circuit board made professionally as I ordered 50
Anyway let me know what you think.