Maine Sail - Just read your "Rant" about AGM's and battery switches. My boat (Hunter 44) is equipped with two on/off battery switches; one for the house bank, and one for the start. There is a seperate third bank - bow thruster battery -charging off the alternator like a car battery and, in my opinion, not in need of monitoring. What settings do you recommend for my 2 on/off switches? My take is that the batteries are effectively isolated by the seperate switches and I can run with them both in the on position - I think.