I think Ghost Grab is asking for the easiest way to put in a house battery and a starting battery on separate circuits (I'm sure he'll discover they are separate when he performs FSMike's simple test), and have it work
. But GG, please correct me if I'm presuming wrongly.
I get the idea he doesn't really want to upgrade a bunch of equipment
, and isn't electrically inclined, and will be happy if he can avoid doing much more than just swapping out the batteries, hook them up intelligently, and have a simple protocol for using the system as is.
I think I know a few things he will need to know:
Maybe if someone can talk him out of the starting battery idea, and just tell him how to use the 1-2-Both battery switch to do everything with two fresh deep-cycles, he'll be happiest.
- whether the alternator is wired through the battery switch, or directly to one battery.
- whether or not the battery switch position can be changed between the 1-2-Both positions without losing contact and potentially damaging the alternator.
- depending on the answer to #2, can that switch be used to to start the boat and keep both batteries charged.
- depending on the answer to #3, does he need to purchase some kind of battery combiner or EchoCharge device?
I mean, he may just want to day sail.