Not solar again ?
I ain't gonna do it , but I am Curious . In the course of a year I pull 3 different trailers and I was wondering : My pickup has a metal topper like the phone companies had in the past , if I put 3 o...
Forum Discussion
Gdetrailer wrote:Practically I agree, but this isn't proof. As soon as you connect a voltmeter there is a load and hence amps flowing even if it's extremely small.
Actually, the panels when not connected to anything WILL "produce" a VOLTAGE at the panel terminals when sun is shining on them.
But when no LOAD is connected (battery, controller or light bulb) there just will not be any CURRENT flowing.
This can be easily proved by connecting a volt meter to any solar panel with sunlight on it and nothing else connected..
Not sure how to "prove" it, any ideas?
Gdetrailer wrote:Actually 2 checks are commonly used in full (or close) sun: Voltmeter and compare to Voc (open circuit) spec and ammeter and compare to Isc (short circuit) spec.
This can be easily proved by connecting a volt meter to any solar panel with sunlight on it and nothing else connected.. If panel is good, you should see a voltage reading up to the rated voltage listed on the panel.
