4 batteries and two switch set up help

Reel Um

Can someone steer me in the right direction how to wire this set up. I bought a used boat and there are two switches with 4 batteries and two motors.

Last boat I had similar set up but three swtiches. Each motor had its own starting battery and two for the house batteries. All four would charge while running and I recall 2 isolator swtiches also.

Thanks

Skeeter08

sounds like you have one switch running 2 batteries for one engine and the same for the other side. accessories must run off of one of them. You probably should take a few picture and I'm sure someone here will be able to help.

Bayrat

If I recall, Blue Seas has a bunch of schematics illustrating how to wire for your requirements, check out their website. What I did for my last older boat was to turn off the batteries one at a time to see what dies. In my case, each pair of batteries started one engine and ran half the house. Ultimately I took it all apart, added a third switch for the house and tied that into the starting banks so I could boost in either direction. Using a Yandina battery combiner, I fed the new, now isolated house bank.

Billgran

Reel Um

Thanks for the advise. I hope to get to it this weekend to work on the boat.

Bayrat

Yep