out what size charge controller for solar panels.??

carl2591 wrote:

I have a 20 amp MPPT controller that might work but not sure as the info show 12 or 24 v operation. Is this considered a 24 v system??

Armed with the spec's (model numbers) of everything, you need to contact the manufacturer of the controller. And/or look for a manual for the controller online.

It would be a stroke of luck indeed if you find someone here who is intimately familiar with that equipment, especially since you haven't provided any model numbers.