This thing is a nightmare, two weeks in and its like mine have all three degraded in effectiveness like a 30 year old cheap solar panel.
A "cheap 30 year old solar panel". I can't even imagine how expensive solar panels were 30 years ago. Also, I think, panels generally come with around a 80% performance warranty for 25yrs.
Comments
You haven't said what the issue is. What exactly is your "USB Sensor issue"?