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Old 05-15-2010, 11:46 AM
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Default Adding second battery in trunk

Ok I got this guy on the ImpalaSSforum and he is trying to tell me that running a Positive and negative from the front battery to back battery is a complete waste of money. And just to ground them in the back. I was hoping to get Nathan aswell as other Members to post here the correct way to run a Battery up front and a battery in the rear.
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Old 05-15-2010, 11:51 AM
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I asked this question not too long ago and a handful of people said to do a run of - from front to back. Some said a run from front to back and even grounding it as well.

I honestly laugh at half the audio talk on car forums. There were people on my nissan forums telling me that sound deadener doesn't help flexing and that I don't have a balanced system because I don't run 6x9s lol
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Old 05-15-2010, 11:59 AM
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it depends LARGELY on the vehicle, and the capable conductance of the chassis.

some vehicles the chassis is a good enough conductor that a negative run is not needed.

for me to say, it really depends on your ENTIRE electrical setup and amps being used.
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Old 05-15-2010, 12:14 PM
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Originally Posted by profundus-sanus View Post
it depends LARGELY on the vehicle, and the capable conductance of the chassis.

some vehicles the chassis is a good enough conductor that a negative run is not needed.

for me to say, it really depends on your ENTIRE electrical setup and amps being used.


That is what I was trying to tell him, but he said he would never waste the money. I told him that if people pay the extra money it must make improvment. It is for a 94-96 impala ss. I know that as soon as I added negative runs in my Impala the electrical became more stable.
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Last edited by KAPONE.SS; 05-15-2010 at 12:17 PM.
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Old 05-15-2010, 12:26 PM
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Quote:
Originally Posted by KAPONE.SS View Post
That is what I was trying to tell him, but he said he would never waste the money. I told him that if people pay the extra money it must make improvment. It is for a 94-96 impala ss. I know that as soon as I added negative runs in my Impala the electrical became more stable.
there you go, if it helped for you thats your answer.

fwiw i have 2 runs of 1/0 ground to the back. the more power you have under the hood the more wire you need to get to the back.
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Old 05-15-2010, 05:01 PM
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Quote:
Originally Posted by profundus-sanus View Post
it depends LARGELY on the vehicle, and the capable conductance of the chassis.

some vehicles the chassis is a good enough conductor that a negative run is not needed.

for me to say, it really depends on your ENTIRE electrical setup and amps being used.
So true!! If there is weld close to the grounding point, then you are not going to get a good ground.
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Old 05-15-2010, 05:03 PM
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Quote:
Originally Posted by KAPONE.SS View Post
Ok I got this guy on the ImpalaSSforum and he is trying to tell me that running a Positive and negative from the front battery to back battery is a complete waste of money. And just to ground them in the back. I was hoping to get Nathan aswell as other Members to post here the correct way to run a Battery up front and a battery in the rear.

We recommend running from the front to the back. One way I look at is if you are going to spend the money on subs, amps, alt, batteries, and everything else. Is a few feet of wire from the front really going to kill you? Why limit your audio systems abilities over a few feet of wire?
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Old 05-15-2010, 05:05 PM
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def add the run
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Old 05-15-2010, 06:00 PM
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Thanks for the reply's hopefully the guy will take's the advice.
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Old 05-16-2010, 12:42 PM
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i thought the same thing its a waste. till i did run the ground from the front to the back in my jimmy.

world of dif with voltage stabilization of my electrical gained over a 1v were i was dipping below b4. so now i run if not 2 grounds from the front to the back at least one.
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