Your ground lead scan run from one individual point, ie, a distribution block run off of one of your batteries ground post would be sufficient as long as all three of your batteries are grounded directly to the frame.
Multiple battery install
Ok so I have 3 agm batteries.
I have a 6k crescendo amplifier with 3 positive and negative inputs
So I have to have 3 runs of 1/0 gauge wire from each positive terminal on each battery till it gets to the amplifier.
Correct.
But when connecting the negatives, do they have to be ran from battery to battery to battery or can I ground each one and only have the positives connected to the other batteries.?
Should I use 3 runs of 1/0 gauge wire per negative too.
If I don't have to connect the negative terminals in parrell and just ground them do I need to use 3 ground wires per negative? Hopefully that makes sense to someone
I have a 6k crescendo amplifier with 3 positive and negative inputs
So I have to have 3 runs of 1/0 gauge wire from each positive terminal on each battery till it gets to the amplifier.
Correct.
But when connecting the negatives, do they have to be ran from battery to battery to battery or can I ground each one and only have the positives connected to the other batteries.?
Should I use 3 runs of 1/0 gauge wire per negative too.
If I don't have to connect the negative terminals in parrell and just ground them do I need to use 3 ground wires per negative? Hopefully that makes sense to someone
1 - 5 of 5 Posts
Exactly as stated above. If you ground them in different locations you increase the chances of ground loops which will give you unwanted alternator noise.
Ok so right now I have my starter battery (I got rid of the 3 runs of 1/0 and went to 1 run of 4/0 ,but a positive and a negative so technically 2 runs of 4/0 ) and the 2 supplementary d3100'sYour ground lead scan run from one individual point, ie, a distribution block run off of one of your batteries ground post would be sufficient as long as all three of your batteries are grounded directly to the frame.
Now when I had the 1/0 wire I had 3 runs from positive to positive to positive and the grounds were ran to the chassis from ground and I read online that if you don't run a ground from your first battery back that you'll get inadequate charging and possibly damage the batteries. So I dumped the 1/0 and went with 4/0 for space reasons . My alternator is 370amp JS and the 4/0 is rated at 700 amps so I figured 1 run would be ok. So right now I have the positive to positive to positive and the negative to negative to negative to chassis's.
Could eliminating that 1 extra run of 1/0 made a difference in charging ? I know this is a lot of questions and I do appreciate all your help!
Should I not have the negative's in in parallel. Or is what I'm doing ok.. it does definitely charge slower since I did that but I added another battery so I thought that it might but be that I have to many batteries. Is that possible . Or should I ground the negative's as you were saying above?
I ran 1/0 power and ground from my front battery to my rear batteries and kept the entire audio system off the frame when I had my Buick. I had Diamond Audio D7 amps with a factory alternator. I had no voltage drop nor did my lights flicker.
Now I'm doing the same thing in my Jeep.
You can ground at the frame by the main battery and then ground the rear batteries and amps to the frame at the rear without issue. However, keep in mind that your steel frame has a lower conductivity than your copper wiring. Meaning, the electrons will not flow as fast through the steel as they will through the copper.
If you're going all out with that kick-ass system you're building, run ground wire from the front battery to the rear batteries.
My two cents.
Now I'm doing the same thing in my Jeep.
You can ground at the frame by the main battery and then ground the rear batteries and amps to the frame at the rear without issue. However, keep in mind that your steel frame has a lower conductivity than your copper wiring. Meaning, the electrons will not flow as fast through the steel as they will through the copper.
If you're going all out with that kick-ass system you're building, run ground wire from the front battery to the rear batteries.
My two cents.
1 - 5 of 5 Posts
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