Battery Bank

[4mo]

Hi,

I just purchased a 370 voyager and it has four group 27 batteries split into two banks of two. I'm not sure I understand why. It seems like there should be a house bank and a starting battery.

I'm considering adding a new starting battery (bank 1) and linking the four group 27 deep cycles into bank 2 for 12v use. There is no inverter on the boat, so I just have to power the LED bulbs and fridge as well as charge phones.

There is also a genset onboard with its own starting battery.

Thoughts?

Thanks!

[bud37]

Welcome to the forum....what year is your boat, might help a bit. One thing with these boats is you have to be aware of what loads Carver hard wired into the bank one position and the bank two position. I guess an example would be using the windlass if it was wired to where you had just the start battery....the engine ecu's don't like voltage spikes, so choose based on the wiring diagram for your specific model if still oem . I think a dedicated house bank is a great idea ......
Ideally I would like to have a separate start battery for each engine and a dedicated house bank....

[4mo]

Thanks bud,

The boat is a 1996. My windlass is currently in the mail, should be arriving next week, I figure if I'm wiring into the electrical system anyway I could easily redo it. I'll see if I can add two additional starting batteries. There might not be that much room.

[bud37]

Yup , the space to fit all this equipment is always a consideration....there will be members along soon that have a lot more expertise in this battery stuff than me.....ie wiring, battery switches and charging the new banks that you may be creating.I am led to believe there is quite some science to all this.....good luck with it. Hope you have the original wiring diagrams and manual that came with the boat.