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Twin Engine, 3 batteries, 1 ACR

Old 03-16-2007, 06:18 PM
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Default Twin Engine, 3 batteries, 1 ACR

Does anyone have the wiring diagram for a twin engine, 3 battery, 1 ACR

I have the starboard engine with the starboard battery by itself on a all switch. I run that switch on number one. The starboard switch has a jumper over to the port switch.

The port switch is wired up to the start port battery and the house battery. I run that switch on number 2.

The port engine charges the start and house battery up the same time. But it can discharge both batteries the same time if I had a problem. I want them independant. The house negative wire goes to the negative side of the port battery. In parrarell.

I want to add the ACR COMBINER to the port start battery and house battery. Is this a easy thing to do.

Does anyone have a diagram on this or drawing.

Thanks in advance

Can you help me in the wiring diagram on this?
Old 03-16-2007, 07:14 PM
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Default Re: Twin Engine, 3 batteries, 1 ACR

No diagram, but easy to do


For this setup you will need 2 jumpers

port 2 to stdb 1

port 1 to stbd 2


When you need to emergency start, put the switch on the dead batt on 2. Normally both will be on 1 (or Off).

Disconnect the house batt from port 2 and connect it to the ACR

The ACR also get connected to the port batt (or port 1). Negative to Negative



Look at Jim Z's diagram in this thread. The 2 batt switches need jumpers & remove the ACR on the stbd batt (not a bad idea to keep for charging the house batt from either engine)

http://www.thehulltruth.com/forums/t...139593&start=1



Old 03-16-2007, 10:43 PM
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Default Re: Twin Engine, 3 batteries, 1 ACR

need drawing if possible

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