Using a house battery with a switch???

[AllyFishing]

Anyone know how to do this?

I have a 12V 80amp Lithium battery I would like to as a "house battery" and wired in to the system along with the cranking battery. I know I will need a special switch but have no idea how to accomplish this. What all goes on the house battery and does the cranking battery only have the outboard cable on it? And how is it all tied into the main ON/OFF switch in our boats??

[Johnny Maxwell]

I saw this question asked several months ago and there were some knowledgeable answers. Tim Powell was one if I remember right. I'm sure he can walk you through it. If he doesn't see this contact him at Fastbass Marine.

[AllyFishing]

ok thanks johnny

I may ask this on the electrical forum as well

[hooken203]

Google How to install a house battery and read an article from West Marine.

[SP1973]

I have done it on my boat. Everything works as should except my electronic battery is not a starting battery. It’s a Lithium deep cycle. I bought the switch that was identical to the OE except for the extra/jump option. Only thing on my start battery is auto bilge and the Merc. Everything else wired into the extra battery.

[AllyFishing]

I have the same thing in mind SP. Any chance of emailing me a diagram on how you wired it up and what switch you used? I'm assuming you have an allison

astro@ptd.net

[SP1973]

I can in a couple of days. I am in South Texas fishing right now.

[AllyFishing]

ok thanks