Do I need Capacitor?

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=48728
Printed Date: July 15, 2025 at 10:29 AM

Topic: Do I need Capacitor?

Posted By: Sancho
Subject: Do I need Capacitor?
Date Posted: January 27, 2005 at 1:47 PM

Ok i finally put all things together in my Isuzu Trooper I got :

Hu Pioneer

6.5 rockford fosgate

and brahma 15 powered by jbl 1200.1

and I noticed that my lights are dimming...will capacitor help me, or do I need new alternator (i think this one is pretty expensive for this SUV) ????

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Head Unit:Alpine CDA 9835
6.5 MB Quart Pce 210
Amp:JBL 80.4
Amp:JBL 1200.1
Sub:Adire Brahma 12 MKII

Replies:

Posted By: bullman96
Date Posted: January 27, 2005 at 2:25 PM

if you want to get rid of a little flicker, if a cap works it will do that but your lights will just be more dim. probably wont work anyways. the alternator is the way to go. you could also try a deep cycle. i have a 120 amp alt and my lights were flickering and i thought my alternator was on its way out or i needed more output. threw in a deep cycle which i was putting off and problem solved.

Posted By: Sancho
Date Posted: January 27, 2005 at 3:40 PM

what is deep cycle???? (sorry don't know)

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Head Unit:Alpine CDA 9835
6.5 MB Quart Pce 210
Amp:JBL 80.4
Amp:JBL 1200.1
Sub:Adire Brahma 12 MKII

Posted By: Francious70
Date Posted: January 27, 2005 at 4:56 PM

A deep cycle is a battery. Like a Optima Yellow Top.

Paul

Posted By: supradude
Date Posted: January 27, 2005 at 9:29 PM

Caps are useless. That's just my opinion. Go with a HO alternator and good battery (like Optima). Upgrade all wiring also.

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'85 Toy

Posted By: auex
Date Posted: January 27, 2005 at 9:47 PM

Caps are pretty much useless. Your best bet is to get a better/bigger alternator. Also a deep cycle battery will only put a bandaid on the main problem. Deep cycle batteries are batteries that can be fully discharged and recharged more then a regular battery.

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Posted By: fastone
Date Posted: January 29, 2005 at 7:08 AM

Hey Sancho. Read this for a little more capacitor info.

https://www.the12volt.com/installbay/forum_posts.asp?tid=48767&PN=1

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Famous last words: Hey man, what's this wire do?