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Message: <blockquote data-quote="robbierob02" data-source="post: 8194764" data-attributes="member: 658718">I just joined here as I been getting all my car audio help here for a while and cannot seem to find an answer to my question.I'm about to be adding a second battery to my truck due to a huge voltage drop in my electrical. My starter battery is providing enough juice to keep my truck going but when I kick in my stereo then my voltage drops. I got the battery checked at autozone and said it needs replacing but since it has enough life to power everything but my stereo i would like to keep it running until taxes to replace that one too. I want to add this second battery for my system and for my air compressors as my truck is bagged. Will wiring them in parallel kill my 2nd battery since the starter battery is on its way out?Starter battery is yellow top optima and I will be runnin the same battery for my system too</blockquote>

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