Need advice on wiring 2 rear batteries.

[gramser57 10+ year member]

I have a 2 runs of 0gauge going to front to rear, my question is I want to wire 2 more batteries in the back making it 3 in total. Now when I connect the 2 rear batteries together do I also do 2 runs of positive and negative or will a single run for each power and ground suffice? Keeping in mind my monoblock has dual inputs and will pull 450amps of current.

Thanks

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[phemps 10+ year member]

You dont need to do seperate runs for the batteries, use the runs you have for the amp now and charge your batteries with those and make your amp connections in the back off your battery bank

 

[gramser57 10+ year member]

You dont need to do seperate runs for the batteries, use the runs you have for the amp now and charge your batteries with those and make your amp connections in the back off your battery bank

I have a XS power as a starting battery which is connected to 2 runs of wire to my rear battery which is a Deka, now I want to add another deka in the rear. Do I connect the 2 deka's in the rear with a single run of 0gauge or do I need to double it?

 

[phemps 10+ year member]

I have a XS power as a starting battery which is connected to 2 runs of wire to my rear battery which is a Deka, now I want to add another deka in the rear. Do I connect the 2 deka's in the rear with a single run of 0gauge or do I need to double it?

ohh ok if your asking about the connections between the two batterys close to each other in the trunk then 1 pos 1 ground will be fine