Charging system on 1999 Bayliner Capri?

[jcar4878]

I have a 1999 Bayliner with a 3.0. I currently have one battery in it. I want to add a deep cycle battery to it. My current battery has two sets of wires on each terminal. One set of wires I believe cranks the boats and the other one powers the radio and other accessories. My question is if I put the set of wires that powers the radio on the deep cycle will the alternator still charge that battery?

 

[tpenfield]

Re: Charging system on 1999 Bayliner Capri?

A perko dual battery switch would be good to use for this.

 

[Don S]

Re: Charging system on 1999 Bayliner Capri?

Using the standard Off/1/2/Both type switch does not isolate the systems, only which battery you are using. In position 1, you are using battery #1 for everything. When running, only battery 1 is being charged. When in 2, battery 2 is used for everything and only battery 2 is being charged. In the Both position, both batteries are basically tied together to make a single battery and both are charged.

To completely separate the House and Engine systems to use their own battery and the engine charges both, you need something like this.

Blue Sea Systems Add A Battery 7650 - iboats

You turn it on, both systems are completely isolated from each other. You can not run down your starting battery running your house system down.
When you start the engine, the automatic charge relay combines and charges both batteries.
Here is some more info on the add-a battery.

Add-A-Battery - 120A - Blue Sea Systems