wire runs

[taintedplay 10+ year member]

ok, i have one battery under the hood, and two in teh back. i was told to have two positive and two negative runs from hood batt to back batt since i was pulling more than 3k watts. is it worth it to run a second run? i will be fusing the negative and possitive wires going to the back either way

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[jco1385 5,000+ posts]

why fuse the neg wire?

 

[taintedplay 10+ year member]

whoops, i dont know why i wrote that. tv + typing = retartedness

 

[jco1385 5,000+ posts]

with 3k, i personally only plan on one run each (1 pos, 1 neg) from front to rear batteries. 2 each might be overkill, which isnt a bad thing.

 

[taintedplay 10+ year member]

for 3500 would 1 be enought?

and if anything woudlent just the fuse pop so then id know id need more?

 

[jco1385 5,000+ posts]

IIRC...

watts = volts (amperes)

X = 14.4v (350a)

5040w = one run of 1/0

factor in efficiency of the amp (let's say 70% efficient) and you get 3528w

might want someone to go over my math though.

 

[Buck 5,000+ posts]

If your alternator isn't more than 300a, then 1 run would be sufficient because you won't be moving more than 300a from upfront. But either way, overkill on electrical is usually better.

 

[NewAgeKing 5,000+ posts]

Im going to run two pos and two negs for my 40.1. Two dekas in rear, 150a alty.

 

[jco1385 5,000+ posts]

can someone check my math

 

[taintedplay 10+ year member]

im gettinga 250a alt. with two dekas in the rear. if it was to much of a strain, would my fuses just pop tho? so then i could replace the fuses and know i needed antoher run

 

[audioholic 5,000+ posts]

So I guess we are all just assuming the wire size? Its kinda important.

 

[Buck 5,000+ posts]

IIRC...
watts = volts (amperes)

X = 14.4v (350a)

5040w = one run of 1/0

factor in efficiency of the amp (let's say 70% efficient) and you get 3528w

might want someone to go over my math though.

Most 1/0 I believe isn't going to be rated at 350a, maybe 300a. And I don't see how you're going to get 5000w out of 350a //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

Edit: Nvm, see your efficiency.

 

[taintedplay 10+ year member]

1/0 knu klmx

 

[taintedplay 10+ year member]

1/0 knu klmx

 

[taintedplay 10+ year member]

jesus. that was a multipost from hell between us two