So, I finally got around to adding a 2nd battery
to my sailboat. The wiring
was all there (Another story altogether) I put the battery
in and hooked it up. I have a battery switch 1,2,all, off. It does not matter what position the switch is in, I always have power going to the circuits on the boat.
Is this a bad switch or a wire problem. I did some basic tracing yesterday and as I see it this is the setup. Start battery neg to motor
and a 2nd cable going from battery neg to 2nd battery neg. on the switch itself there is three terminal. One common and 2 for battery input. One input to battery 1 pos terminal and one to battery 2 pos terminal. The common Terminal goes to the starter and also to feed the boat electrical system
On the start battery there is a couple circuits wired directly. Such as the bilge
auto and the radio
memory wire. Also each battery has a connection to the positive terminal going to a dual battery charger
Why is there always power. I am going to go out today and test the switch, but I do not think that is the problem. I can here the connections being made as I turn the selector switch. Meaning the noise
the mechanical switch makes as it makes and breaks contact.