Help with dual batteries

[kerrbe]

I have 2 batteries that I am wiring to a blue sea switch. I have all the battery cables figured out but not sure where the 2 red wires attach or the 2 black wires. They come from the console to back where the batteries are. Can anyone help me? Here is a pic of them attached at the console.

 

[MH Hawker]

Re: Help with dual batteries

those are from the accessory panel under the helm and power most ever thing.

 

[MinUph]

Re: Help with dual batteries

Hook the accessory red (hot) to the center lug on the bottom of the diagram. The ground (black can go to either battery and you jump the - (grounds) of the batterys to each other.