Monitoring Solar Panel Performance
|Image of Digital Voltmeter on Amazon|
When they arrived, I checked each one of them by holding the wires to a 3-volt watch battery. The display lit up and clearly showed 3.16 volts on both digital voltmeters.
|Testing the New Digital Voltmeter with a Watch Battery|
|Voltmeters in Use at 9:30 AM|
While this was an interesting and inexpensive exercise, I'm not sure that we learned all that much about each solar panel's performance.