battery or altenator???

[customlt1 10+ year member]

i just recently put a new battery in my cherokee...when my bass hits hard at night my lights dim especially the headlights..i heard that i need a high output $300 altenator....i already have a rockford capicitor which isn't doing shit..ne ideas?

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[LIGHTBEING 10+ year member]

New battery won't do much for you, when your car is running all the amps are drawn from the Alternator. Big 3 would be the first thing to do then if you are still seeing voltage drops you'll need a HO Alternator.

how many amps is you stock Alt? and how many watts for your system?

 

[customlt1 10+ year member]

im not sure on the alt. specs....my amp is a jbl 1200.1 pushing a 12' alpine xtype

 

[denim 5,000+ posts]

Both //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[Nikuk 5,000+ posts]

Big three in the engine bay... (make very good grounds).

-then-

Battery (electrical draw greater then the amp output will draw from the batts).

-then-

Alt

-then-

Extra batts.

-Nick

 

[req 5,000+ posts]

id do it like this IMO,

big three

alt

battery

but thats me.

 

[LIGHTBEING 10+ year member]

same here

 

[Str8Up 10+ year member]

im not sure on the alt. specs....my amp is a jbl 1200.1 pushing a 12' alpine xtype

Those Jbl's are power hogz. I hooked my friends JBL up to my system to see if it worked, and every single light in and on my car dimmed like a theater just b4 the movie. I hooked my Brutus 1500D back up, and no problems. Only minor dimming at stop lights.

Btw yall, what exactly is the big 3? I have 4 guage power and ground, what other wires need to be bigger?

 

[btnhfan 5,000+ posts]

Battery to alternator

I had like 5 ground wires in my civic that I did. They were coming from everywhere out of the engine block.

 

[Hyybrid89crx_si 10+ year member]

If my current alt is 100 amps and I am installing a Hifonics BX1500D would I need a high output alt?. I hooked up a JL 500/1 and I had a horrible dimming problem.

 

[Str8Up 10+ year member]

If my current alt is 100 amps and I am installing a Hifonics BX1500D would I need a high output alt?. I hooked up a JL 500/1 and I had a horrible dimming problem.

I have a stock 125a alternator, and I only get minor dimming at stop lights, and no problems in the day time. I'd say if a 500 watt amp dimmed your lights, an amp that puts out approximately 3 times more than that will definately be worse. Don't ya think so?

 

[Hyybrid89crx_si 10+ year member]

Well I know different amps draw diff amounts of current. I wasnt sure if there was a way to calculate current draw

 

[customlt1 10+ year member]

does anyone know if the audiobahn 800watt would be a better choice and not dim as much?

 

[Str8Up 10+ year member]

What is the typical size guage wire that is going from alternator to battery in a stock electrical system?

And is that it, just upgrade the wire from the battery to the alt?

 

[swrve 10+ year member]

http://forum.sounddomain.com/forum/ultimatebb.cgi?ubb=get_topic;f=5;t=007801

there ya go, i have to do that as well. i have the jl 500/1, and my lightd dim like crazy. weird thing is, i upgraded my alternator when i got my air ride, and threw a yellow top under the hood. i have since removed and sold all my air ride, and my lights still dim.