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Voltage Issues in Classic
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<blockquote data-quote="Kickstand" data-source="post: 8741646" data-attributes="member: 681842"><p>I was talking about an isolator on the second battery.</p><p>Because your running to the front battery first it's basically hogging the charge which is probably why your back battery keeps dying.</p><p>The first time I tried to set up a dual battery system I did the same thing and had the same results.</p><p>You have a couple options, use an isolator.</p><p>Run the line to your second battery directly from the alt (fused of course)</p><p>All of this however is putting more strain on your alt.</p><p>Honestly, on 2000 watts with a 220 amp alt you can probably get away without the second battery</p><p>If its not already I do suggest using an AGM Battery though. XSPower, Northstar, even Optima.</p><p>AS for your grounding issue</p><p>Here is a write up I did a while back on how to find a proper ground</p><p>Sorry about the pictures I was new here at the time and wasn't sure how to post them but if you click on the links they are all there</p><p><a href="https://www.caraudio.com/threads/how-to-find-a-ground-for-your-amp.607223/" target="_blank">https://www.caraudio.com/threads/how-to-find-a-ground-for-your-amp.607223/</a></p></blockquote><p></p>
[QUOTE="Kickstand, post: 8741646, member: 681842"] I was talking about an isolator on the second battery. Because your running to the front battery first it's basically hogging the charge which is probably why your back battery keeps dying. The first time I tried to set up a dual battery system I did the same thing and had the same results. You have a couple options, use an isolator. Run the line to your second battery directly from the alt (fused of course) All of this however is putting more strain on your alt. Honestly, on 2000 watts with a 220 amp alt you can probably get away without the second battery If its not already I do suggest using an AGM Battery though. XSPower, Northstar, even Optima. AS for your grounding issue Here is a write up I did a while back on how to find a proper ground Sorry about the pictures I was new here at the time and wasn't sure how to post them but if you click on the links they are all there [URL]https://www.caraudio.com/threads/how-to-find-a-ground-for-your-amp.607223/[/URL] [/QUOTE]
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