Do you need to have this common bus bar or can I go without it?

Gradywhite3535

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If I don't have a relay or isolator how would my setup be different

If I don't have a relay or isolator how would my setup be different

If I don't have a relay or isolator how would my setup be different? And what is the ground stud by the engine?
 

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bruceb58

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Re: If I don't have a relay or isolator how would my setup be different

Re: If I don't have a relay or isolator how would my setup be different

Just leave out the ACR and the wires going to it.

The ground stud is just where the ground from the batteries connect to on the engine.

I have that ACR and recommend it highly.
 

Don S

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Re: If I don't have a relay or isolator how would my setup be different

Re: If I don't have a relay or isolator how would my setup be different

You probably picked the hardest wiring diagram to follow you could fine.
Here is his final wiring diagram for the battery and battery switch system using the charge relay.

View attachment ACR.pdf

Now here is the same system WITHOUT the charge relay, and a different type switch.
Without a charge relay or isolator, you could not use the same type switch as you would not be able to charge both batteries unless you turned the switch to combine. At that point you might as well use the standard 1-2-Both-Off switch.
Then the system would look like this.

View attachment 12both.pdf
 

Don S

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Re: Do you need to have this common bus bar or can I go without it?

The reason for the buss bar is so your battery doesn't look like a porcupine with a dozen wires attached to it. It also really helps when the need for troubleshooting comes.
That battery terminal would be really full of stuff and hard to tighten things down.
They (buss bars) are how things are done properly in electrical work.
 

Gradywhite3535

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Re: Do you need to have this common bus bar or can I go without it?

What if I buy a fuse box that comes with a bus?
 

Gradywhite3535

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Re: If I don't have a relay or isolator how would my setup be different

Re: If I don't have a relay or isolator how would my setup be different

Yea that's what I thought would be done, I just don't get the common bus bar that is separate from the fuse panel, I thought all neg(-) wires would goto the neg(-) on the fuse panel bus?
 

Don S

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Re: Do you need to have this common bus bar or can I go without it?

The buss bar in the drawing (Too small to see in your pictue, but I drew it and know what it is) is in the back of the boat, not at the helm. if you look at the big diagram, you will see the fuse panel also has a negative buss and it is connected to the one back by the batteries.
 

Don S

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Re: If I don't have a relay or isolator how would my setup be different

Re: If I don't have a relay or isolator how would my setup be different

Yea that's what I thought would be done, I just don't get the common bus bar that is separate from the fuse panel, I thought all neg(-) wires would goto the neg(-) on the fuse panel bus?
Look at your other post on the buss bar.
 

Gradywhite3535

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Re: Do you need to have this common bus bar or can I go without it?

I have a center console, all my batteries and battery switch and fuse panel are all in the center console. So I don't need the extra buss?
 

Don S

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Re: Do you need to have this common bus bar or can I go without it?

It's up to you. Personally, I can't see how your boats systems are rigged so can't make exact individual recommendations.
 

bruceb58

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Re: If I don't have a relay or isolator how would my setup be different

Re: If I don't have a relay or isolator how would my setup be different

You can have multiple bus bars. You can have one at the engine and have one at the fuse panel at your console.

In my boat, I have some things in the back of my boat that are controlled by switches at my console. One example is my engine compartment lights. They get power from the switch at the console but get the ground from a bus bar located in my engine compartment. This keeps me from running multiple grounds from the battery. I just have to have one large wire from the battery feed the bus bar.
 

Gradywhite3535

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Re: If I don't have a relay or isolator how would my setup be different

Re: If I don't have a relay or isolator how would my setup be different

I see, I have a center console that has my fuse panel, batteries, and battery switch, I basically don't need any more buss since I have one on my fuse panel?
 

Don S

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Re: If I don't have a relay or isolator how would my setup be different

Re: If I don't have a relay or isolator how would my setup be different

Then don't get another one. Geeeez. :facepalm:

You have two threads going on about this buss bar.
 

Gradywhite3535

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Re: If I don't have a relay or isolator how would my setup be different

Re: If I don't have a relay or isolator how would my setup be different

I wasn't trying to be mean lol, I was just asking a question
 

Gradywhite3535

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Re: Do you need to have this common bus bar or can I go without it?

Yea Iam going to buy a new fuse panel, thank you very much
 
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