My Tournament V18 has an 8 amp Guest onboard charger 4/4 . I asked the marine mechanic today what these wires were and he was as baffled as I am. He thought maybe they were for some kind of solar charging system hookup. The two sets of wires going to the batteries come from the left side of the charger. The AC power and these wires come from the right side. Anyone know what these wires are for? They have crimp connectors on the ends, but have never been used.