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Wiring multiple batteries?

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Wiring multiple batteries?

Post by Emery.H on Fri Jan 27, 2012 4:04 pm

Studied this site and it's diagrams a bit. May check out how you have your batteries wired up and make a couple changes to help save your investment in batteries.

http://www.smartgauge.co.uk/batt_con.html

Least i would suggest is have your positive that goes to your amps be from the opposite end of the negative in your battery bank. As shown in method 2. Shouldn't require much changes in your wiring if you currently are wired up in method 1.

Hope this helps someone! Very Happy
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Re: Wiring multiple batteries?

Post by NoPh33rRaCiNg on Sat Jan 28, 2012 1:57 am

That is an interesting read. You wouldn't think it would make that much difference on which post you ran the leads to your amp.

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Re: Wiring multiple batteries?

Post by Emery.H on Sat Jan 28, 2012 3:47 am

NoPh33rRaCiNg wrote:That is an interesting read. You wouldn't think it would make that much difference on which post you ran the leads to your amp.

But once you start to think about it, it makes total sense right? Would be cool to see if someone changes their wiring and see if they notice any better voltage or less of a drop.
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Re: Wiring multiple batteries?

Post by scionwithbass on Wed Feb 29, 2012 11:51 am

Ok so I'm going to get a couple more batterys. I know if you have them in the back you can hook up your amps in this order Alt--battery--battery--battery-- amp. All going into a straight line. But I can't mount 2 battery's behind my front bumper I realized. Would it affect anything if it was wires like a Y shape?

Battery--battery-\
.........................------------ amp.
Alt-------battery-/

Like it wouldnt be in a line. The amp would be connected to the first battery. And the other 2 will be connected to the battery vs the amp being connected at the end of the battery line up. Would this work? Or does the amp need to be at the end?
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Re: Wiring multiple batteries?

Post by Emery.H on Wed Feb 29, 2012 5:54 pm

Not too sure what you mean.. Maybe try to whip something up in paint.
The batteries don't need to all be together to be wired in parallel, just wire from alt to the next battery to the next and so on down to your amp. + to + to +, same with - connections.

You're whole trunk is empty! Throw them back there Very Happy
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Re: Wiring multiple batteries?

Post by scionwithbass on Wed Feb 29, 2012 5:58 pm

Emery.H wrote:Not too sure what you mean.. Maybe try to whip something up in paint.
The batteries don't need to all be together to be wired in parallel, just wire from alt to the next battery to the next and so on down to your amp. + to + to +, same with - connections.

You're whole trunk is empty! Throw them back there Very Happy

True, it probly cost the same for the extra wire than to make the battery holders. My front battery now isn't AGM. Can I put an AGM battery in the trunk wired in parallel? Or should I get 2 AGMS?
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Re: Wiring multiple batteries?

Post by Emery.H on Wed Feb 29, 2012 6:06 pm

I would suggest 2 similar batteries, but it's a daily driver so you shouldn't see much of an issue. There is a possibility the larger (i'm assuming) AGM battery will drain the starter battery over a period of time.
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Re: Wiring multiple batteries?

Post by scionwithbass on Wed Feb 29, 2012 6:29 pm

Ok so I need 2 Agm battery's.
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