[wepaddle4]

I guessed right on the function, the two positions make sense now

I have the same setup (4 batteries), one house battery was dead, dragging the other down. I presume replacing in pairs is advised. The alternator gave up as well; I pulled it off, it's at the shop to see about a rebuild but they were leaning towards a replacement based on lack of parts for a 1982 Motorola 8S.

Scott