Adding more runs of power to rear batt

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I have the wolfram 0-5000.1 coming soon and as of now I have 1, 1/0 run of welding wire running from front batt to rear batt. I plan to run another run of welding wire to the rear bat but should I run the run from alt stud to main bat and then to rear bat? Or should I just run another run straight from alt stud to rear batt and bypass the main battery?

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[Louisiana_CRX 5,000+ posts]

I ran 6 runs of 1/0 in my crx on less power than that ...3 runs of hot and 3 runs gnd

 

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I ran 6 runs of 1/0 in my crx on less power than that ...3 runs of hot and 3 runs gnd

I was thinking ill probably need def more than 2 runs anyways. But should I bypass the main batt? Or run the run from alt studs to main bat and then the runs from that to the back batt. ?

 

[Louisiana_CRX 5,000+ posts]

I was thinking ill probably need def more than 2 runs anyways. But should I bypass the main batt? Or run the run from alt studs to main bat and then the runs from that to the back batt. ?

I have an adjustable regulator on a small case GM ho alternator from ohio generators ... it's only 160a I believe but it's never let me down ..I ran a 1/0 from it to my batteries and at one time had 2 barcap 2000s under the hood then ran th o my other batteries in the hatch ... you could go with a quality battery under the hood and something beefy in the back . And hook the batteries up to each other. This reminds me of a funny competition story ....

Years back a guy was running his mouth bragging on the USACi forum ..he had a CRX and was from Texas ... Paris Texas ... anyway him and my buddy had really gotten into it and were gonna both be in Shreveport at Import Faceoff ..so the night before the show I pulled my 3 ANLs and charged the rear batteries... I had the 2 barcap 2000s under the hood and didnt want ..it to backfeed anything ..well we got up early the next morning and headed to the show ...the ole boy come up running his mouth ho ws he was gonna beat us ... I had heard that from more than one person ...so nothing new ...any way he ran and was in the 150s so not bad...I had 4 8s I think he had a a couple beefy 15s.... so my turn came I ran my car and beat the guy ... after I ran I started demoing the car since it was designed to be loud and play music ...he came and listened to the car along with others...well my amps started but th ing out and I noticed voltages wasnt right ...so shut her down it was getting late anyway ...drove back and parked the car with the big first place trophy and said I'll check it tomorrow..next day new day I popped the hood grabbing my trusty fluke and looked down and no ANL fuses ...I ended up beating the ole boy off trunk batteries alone no running voltage lol ...

 

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Lmao. I hate big shots. Always screaming for nothing lol. I'm just building for a heavy daily pounder. No shows or comps really.

Well I have a plat agm under the hood little over a year old. And a northstar in the trunk on a 350 amp brand x alt with a external voltage regulator to 14.8 I see about 14.9 almost 15 coming from the alt stud. So should I just run 2 or 3 runs from alt stud to main battery? Then run another 2 or 3 runs from front batt to the rear batt?

 

[audioholic 5,000+ posts]

The run to the rear batt should go... alternator to relay, relay to rear fuse, rear fuse to rear batt.

I was thinking ill probably need def more than 2 runs anyways. But should I bypass the main batt? Or run the run from alt studs to main bat and then the runs from that to the back batt. ?

Your question on whether or not to bypass the main battery depends on if you want to isolate the front and rear batts. Some people like to keep the front batt just for the stock electricals, and the rear batt(s) for the stereo. I usually linked my front and rear batts for higher overall capacity for the stereo. But if you do it my way you want same brand/model/age batts ideally.

Also, for optimum performance, you want all your individual runs of power wires to display the same resistance, which means same gauge and length. So don't just add a new run of 1/0 without knowing its the same length as the one already installed.

 

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Well I'm using the ah from the hood battery in addition to my overall ah between the 2 batteries. So I may just run the extra runs from alt to main and then from main to rear battery. I don't wanna deal with relays and such. The runs from front to rear battery will all be about 15 ft. Give or take a few inches. I guess I'll just do it that way. My alt is more than powerful to supply a voltage to both in a recharge aspect. I dont ever see a change in resting voltage either. Both batts are resting at about the same voltage. I just didnt know if there was a beneficial point in running the runs from alt to rear battery even though there is 1 run from front to rear as of now. And I think if I kept that run and just went additional runs from alt to rear batt now, it would cause stress on the 1 run from front to back. So I guess I'm just gunna get 6 spot terminals and run them from alt to front bat and then to rear bat.

 

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Plus again
Im.not competing I'm just wanting to provide my amp with what it needs to run good. I'm just getting ready for that wolfram 0-5000.1 soon. And want to keeo it happy. And I know 1 run isnt going to cut it. Along with the other amp I have for my doors.

 

[shredder2]

I have the wolfram 0-5000.1 coming soon and as of now I have 1, 1/0 run of welding wire running from front batt to rear batt. I plan to run another run of welding wire to the rear bat but should I run the run from alt stud to main bat and then to rear bat? Or should I just run another run straight from alt stud to rear batt and bypass the main battery?

For a 5K with a 350A alt I'd think 2 runs 1/0 (or 2/0 welding) should be enough. Unless you are running different voltages/dual alts (car vs audio) I'd just double up the big 3 and call it good myself and do a single (double, tripled?) main run front/rear. With every ground (front or rear) doubled or whatever too.
I'd grab a dual charging lug for alt to battery up front only if it was me. 1/0 welding (if that's what you have) might need tripled but It'll depend on the length of run and amp draw.

 

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For a 5K with a 350A alt I'd think 2 runs 1/0 (or 2/0 welding) should be enough. Unless you are running different voltages/dual alts (car vs audio) I'd just double up the big 3 and call it good myself and do a single (double, tripled?) main run front/rear. With every ground (front or rear) doubled or whatever too.
I'd grab a dual charging lug for alt to battery up front only if it was me. 1/0 welding (if that's what you have) might need tripled but It'll depend on the length of run and amp draw.

Yea i was going to run 2 or 3 runs frkm.front to back and I had that in mind to get a dual 1/0 lug for alt stud to batt. And doubling up a big 3? So do the big 3 twice is what your saying ? I have 350 alt , plat agm under hood and northstar in trunk. Using both bats ah combined.im.only running about 15 ft each run of power wire from hood to rear. And also. I know the 5k says 500 amp. But what would you think it would pull on music? Amperage wise.

 

[shredder2]

So do the big 3 twice is what your saying ?

I have everything doubled up, front and rear... including the charge leads & you're probably running more power than I am.