diagram for battery setup

O

ocean

Member
exMember
Joined
Jun 28, 2005
RO Number
18039
Messages
141
Is there a common setup for: 3 batteries,2 engines,1 generator. I am looking for a usefull
diagram. Any info is appreciated
 
I should have added 2 battery switches 1 in the Eng.room and 1 on the electrical panel, the 2 switches of Pos.1 Pos.2 and all settingd
 
1 battery should go through an on/off switch to the genset only. With a momentary switch and solenoid or another battery switch to parallel it into the mains for backup starting of the mains. Or vise versa.

Then one battery to each engine, each with it's own shut off switch. Then a positive wire from each of those switches to the battery switch at the panel so you can select which battery you are using as a house battery.
 
The most common :
1 main starting battery for each motor each with a 1-2-Both switch.
(2 batteries per motor preferred.)
1 battery for gen .that can double as ships battery
 
This is minus generator but I'm sure that part won't be difficult.

BoatBatterySetups.jpg
 
Not a very good diagram. You can't run two alternators against each other like that without a special device to regulate two alternators together (such as a Balmar Center fielder).

This question deserves a LOT more thought than a "common" diagram. I'd refer you to Nigel Calder's book and suggest reading it a few times. Lots of tradeoffs to make, based on the particulars of YOUR boat.

The only thing I would make a blanket statement on is that if you are looking at a diagram that includes an 1/2/both switch anywhere, move on and find something less comical.
 
"You can't run two alternators against each other like that without a special device to regulate two alternators together (such as a Balmar Center fielder)."

You can if it's a two alt. in isolator.
 
You can like the above comment as long as it is a 2 alternator isolator. I personally prefer ACR's to lossy isolators.
Bill
 
quote:
Originally posted by ocean

Click to expand...


I do not think the original question has really been answered.

That said, I think to really answer it you need to know more about the type of boat being addressed and more about the equipment on that boat. I highly doubt that there is a common wiring diagram for a 33 foot outboard boat as comparred to a 33 foot inboard boat. And I also doubt that there is a most common diagram for each of those types.

I also suspect that different manufacturers set up their boats differently. My 31 ft. Pursuit has 3 batteries: house, port and starboard starting batteries. The battery switches are on and off only. The starboard starting battery also starts the generator. The battery parallel switch is at the helm station.

I suspect that there are many different configurations.

G
 
You must log in or register to reply here.
Back
Top