280amp alternator with dimming head lights

[09civic 5,000+ posts]

you shouldn't need an extra batt to just get rid of dimming. their is obviously a problem.

 

[Epic0318 10+ year member]

well wouldnt the problem be that the amp is drawing current from a single yellow top? for that amp wouldnt it be better to have a second amp and probably since he might have another amp for mids and highs on the same single yellow top.

 

[ColterDC 10+ year member]

well wouldnt the problem be that the amp is drawing current from a single yellow top? for that amp wouldnt it be better to have a second amp and probably since he might have another amp for mids and highs on the same single yellow top.

Pretty sure your electrical system draws from the alternator when the vehicle is running, not the battery.

 

[dgaf 10+ year member]

here's a link to the thread where i ran my wires: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/510180-lets-start-already.html

and here's the box build and install: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/516082-build-log-dgaf-2-sa-15s-vinyl-wrapped-double-kerfed-enclosure-amp-rack.html

 

[Epic0318 10+ year member]

doesnt the alt just recharge the battery?

 

[ColterDC 10+ year member]

here's a link to the thread where i ran my wires: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/510180-lets-start-already.htmland here's the box build and install: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/516082-build-log-dgaf-2-sa-15s-vinyl-wrapped-double-kerfed-enclosure-amp-rack.html

Have you ever thought about removing the ground you have running from the distro block to the battery negative and just ground to the best spot closest to the amp?

 

[dgaf 10+ year member]

Have you ever thought about removing the ground you have running from the distro block to the battery negative and just ground to the best spot closest to the amp?

i'muh go try that right now

 

[09civic 5,000+ posts]

doesnt the alt just recharge the battery?

it does more than that

 

[The_Grimy_One 10+ year member]

doesnt the alt just recharge the battery?

For the most part, the battery is just there to start the car. You can start the car with your batt, then disconnect while the car is running, and the alt will keep the car going. The alt is far more important than the batt.

 

[Epic0318 10+ year member]

well im not to big on this stuff but im still thinkin that the problem is the bat.

 

[dgaf 10+ year member]

i disconnected the 4ga wire going from battery negative to ground block, and lights still dim when subs hit.

this is a dumb question, but i dunno, do i need a wire going from my alternator to my amp? cuz it's just 1/0 from alt to battery, 1/0 from battery to amp

 

[Kangaroux 5,000+ posts]

OP what kind of voltage is your alt putting out? If it's set to 16v, do you have a step down converter?

 

[dgaf 10+ year member]

just checked voltage

there's fo sho a problem somewhere

when trucks running i'm at 13.8

when subs kick in, it dropped to 11.8

 

[Kangaroux 5,000+ posts]

just checked voltagethere's fo sho a problem somewhere

when trucks running i'm at 13.8

when subs kick in, it dropped to 11.8

Me thinks you have a speaker wire short

 

[grandam888 10+ year member]

i would move that ground in the trunk area off that bolt, and back to a solid grounding point. if it were me i wouldn't even use the ground distro block, i would run multiple grounds wires.

the a run of 0 gauge is fine, 0 gauge is rated to 250 amps and Ur consuming no more than 175-180 amps.

i would monitor the voltage to see whats up.