Capacitor Overkill?

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=20715
Printed Date: July 14, 2025 at 11:53 AM

Topic: Capacitor Overkill?

Posted By: 1UZFE
Subject: Capacitor Overkill?
Date Posted: October 29, 2003 at 11:48 AM

hey everyone. this is my first post. i was directed here by the forum at lexusownersclub. this place is great!

ok, now to the question. i'm installing a 12" JLw4 with a 150W Lightning Audio amp. i don't want to drain my battery so i was thinking of installing a 1/2 farad lightning audio capacitor. is that overkill? do i need a capacitor with such a small amp?

thanks!

Replies:

Posted By: bfog99
Date Posted: October 29, 2003 at 12:38 PM

The general rule of thumb is 1 farad per 1000 watts. What all does your system include? If the only amp you have is the Lightening Audio, you don't need to worry about a cap. Aldo, the only way you will drain your battery is if a peice of equipment, such as your deck or amp, stay on. Then it would be like leaving your dome light on. What you would actually need to worry about is your alternator not putting out enough amps. With the amp you have you won't need to worry about that either.

Posted By: MAXST
Date Posted: October 29, 2003 at 12:39 PM

Caps arent useful anyways. you dont have to worry about power drain. That isnt much draw anyways.

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Posted By: 1UZFE
Date Posted: October 29, 2003 at 12:53 PM

SA-WEET...that's what i was hoping to hear! muchas gracias muchachos!!

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