amp in diesel w/2 batteries

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=93105
Printed Date: July 12, 2025 at 7:50 PM

Topic: amp in diesel w/2 batteries

Posted By: cory davis
Subject: amp in diesel w/2 batteries
Date Posted: April 18, 2007 at 8:21 PM

I have a 1997 gmc sierra diesel. Is it ok to run my amp (200w) off the secondary battery, on the top post (the side posts are used for vehicle connections)? I am currently running this way with no noticed ill effects.Thank you in advance for your consideration. Also, sorry if this is a repeat question, I searched the forum but didn't find the answer.

Replies:

Posted By: haemphyst
Date Posted: April 18, 2007 at 8:58 PM

Either post can be used for any connection - they are electrically the same. As long as you have the mechanical connection, you can go either place.

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It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."

Posted By: cory davis
Date Posted: April 18, 2007 at 9:30 PM

Thank you for the rapid response. After reading over my quesion again, I want to clarify, that I really need to know if it is ok for me to run the amp power from the diesel's 2nd battery, not the primary one. Thank you again.

Posted By: forbidden
Date Posted: April 18, 2007 at 10:03 PM

It is fine running from either battery. No need to change anything at all. Make sure that you have a fuse on that power line no further than 18" from the battery.

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Top Secret, I can tell you but then my wife will kill me.

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