Big 3 - Alternative

[groove269 10+ year member]

I am having crazy dimming....i cannot do the "Big 3" because my battery in in the trunk (I have a Dodge Charger). Is there an alternative to eliminate the dimming?

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[natisfynest 10+ year member]

you can still do the big 3 and upgrade ya battery

 

[groove269 10+ year member]

you can still do the big 3 and upgrade ya battery

Is that possible with battery in the trunk? Doesnt the "Big 3" consist of:

1) Battery negative to chassis

2) Alternator to battery positive

3) Chassis to engine

so....how would i connect the alternator to battery positive? im lost //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

 

[dman4486 5,000+ posts]

Is that possible with battery in the trunk? Doesnt the "Big 3" consist of:
1) Battery negative to chassis

2) Alternator to battery positive

3) Chassis to engine

so....how would i connect the alternator to battery positive? im lost //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

long line to the rear:fyi:

 

[Redlineaudio 10+ year member]

long line to the rear:fyi:

Yeap, Just like putting an amp in and running a long line to the rear.

 

[Dak446 10+ year member]

x2. just run where ur stock power wire is, but w/ 1/0 or bigger

 

[AVX Mike 10+ year member]

Same as everyone else does to run the second battery in the trunk or powering an amp. Just go to the positive post of the alternator. Be sure to fuse the wire up front and in the rear.

 

[skittlesRgood 10+ year member]

same thing as running a power wire from the front to the amp in the back. just connect it from alt to batt. ground the batt in the trunk. simple.

 

[groove269 10+ year member]

Would it be better if i were to buy a yellow top and keep my stock battery for my 'Engine?' and the yellow top for my audio? The dimming is so bad i dont even have the bass on anymore, it almost looks like the lights shut completely off

 

[jco1385 5,000+ posts]

Would it be better if i were to buy a yellow top and keep my stock battery for my 'Engine?' and the yellow top for my audio? The dimming is so bad i dont even have the bass on anymore, it almost looks like the lights shut completely off

you could do that, but you still need to feed the YT with the alt up front so the 1/0 pull has got to happen with or without the YT in there.

 

[Blue Fury 10+ year member]

Would it be better if i were to buy a yellow top and keep my stock battery for my 'Engine?' and the yellow top for my audio? The dimming is so bad i dont even have the bass on anymore, it almost looks like the lights shut completely off

You can only run what your weakest link is capable of. What size wire do you have now like 4g? If you want to run more current, you WILL need to upgrade some wires.

 

[Savag3 10+ year member]

buy a yellow top and hook them both up in paralel and do big 3