I was wondering if anyone might have some advice regarding the Seimens SM110 Solar panels
I have on board.
I tested the voltage the other day at high noon down here in Panama
and was only getting 13 - 14 volts. I have only tested at the wires coming into the charge controller.
I am wondering if the panels
are shot or if there maybe other areas to test or clean?? The two panels
are connected in series and there are for module boxes under the panels. Can this be a source of voltage loss?
Visually the panels don't look new that's for sure, they are 9 or 10 years old, there is some browning and some of the filaments look a bit distorted.
Are these panels ready for retirement
or can I do some restoration
to get the voltage back?
Thanks for any advice