hello from sunny south florida

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=135619
Printed Date: May 17, 2025 at 6:22 PM

Topic: hello from sunny south florida

Posted By: jv6713
Subject: hello from sunny south florida
Date Posted: December 26, 2013 at 1:32 PM

hello everyone new to the forum and really looking forward to all the combined knowledge that only this forum can bring to those who seek it.

with that said I have a question. what is this and what is it used for? [URL=https://imageshack.us/photo/my-images/43/gh2b.jpg/][IMG]https://imageshack.us/a/img43/2889/gh2b.th.jpg[/IMG][/URL]

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It's all about the journey the destination is a pit stop.

Replies:

Posted By: DYohn
Date Posted: December 27, 2013 at 9:49 AM

Welcome to the forum. That looks like a battery isolator. It is used to allow a second battery to operate the audio system without affecting the car's battery.

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Posted By: jv6713
Date Posted: January 03, 2014 at 10:02 AM

thank you.

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It's all about the journey the destination is a pit stop.

Posted By: oldspark
Date Posted: January 03, 2014 at 10:28 AM

And it's a diode type isolator...
It may be cheaper using a relay type isolator unless you have a Sense circuit/wire from the alternator's voltage regulator to the battery, but then the 2nd battery can be over or undercharged.

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