Solar power question

[JPin AZ]

I have an unknown solar panel on my roof. Estimates have been given at 75 watts. While replacing the battery today I put a volt meter on the cables (only two) with battery removed and no shore power. I had battery voltage, obviously it is from the panel. I am assuming this is normal, but is it correct? Would removing the array fuse from the controller stop this from happening to avoid shorting power to ground etc?

[boondocking]

That reading looks like an amperage (array current) reading not a voltage reading.

[JPin AZ]

Originally Posted by boondocking

That reading looks like an amperage (array current) reading not a voltage reading.

It is. I was trying to avoid replies "we can not help you without knowing what controller you have." The voltage I measured was with a DVOM at the battery cables. I believe this controller has two fuses one of which is between the solar panel and the controller. I would think removing it would stop the voltage I found. I first found out about my solar panel when my radio continued to play when the TT was not connected to shore or battery power. Just after purchase.

[babock]

Yes, you should remove the fuse from the solar array to the controller. In addition, some controllers with no load(battery) will cause them to go over voltage and blow their outputs so always disable the solar array to the controller when disconnecting the battery.

[boondocking]

Originally Posted by JPin AZ

The voltage I measured was with a DVOM at the battery cables.

Sorry, I misread your post.
And yes, remove the fuses as babcock suggests.