Solar Panels
I have 2 65w panels connected through a controller. I am testing them with the connection wires disconnected. I am getting 20.5 VOC and 3.5 ISC from each panel. The back of each panel says it shoul...
Forum Discussion
Many of the better quality panels have a 20 or 25 year guarantee on performance.
But as others have mentioned, time of year, time of day, and angle to sun play a huge role in the output of the panel.
I used to buy Kyocera panels when they sold 12V panels to the public.
Here's how my 135W panel tested:
Here's another panel, same rating, tested a different day:
Both tested about the same on yet another day. Yours are probably fine. Check again during the peak of the day during the Summer.
But as others have mentioned, time of year, time of day, and angle to sun play a huge role in the output of the panel.
I used to buy Kyocera panels when they sold 12V panels to the public.
Here's how my 135W panel tested:
Here's another panel, same rating, tested a different day:
Both tested about the same on yet another day. Yours are probably fine. Check again during the peak of the day during the Summer.
