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Wiring, Electrical & Installation
Wiring 2 alternators to completely separate batteries
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<blockquote data-quote="Michael Poole" data-source="post: 8659459" data-attributes="member: 675825"><p>Hey guys I'm brand new to this forum and need a little help. I apologize up front if this question has already been answered. If so please shoot me a link. I've scoped the internet far and wide and can't find a good answer. Anyway, let's get to the point. I'm in the works of new audio build and I want to run a high output alternator straight to a battery bank that will power all of my subs (8 in total totaling 2700 watts rms) then I want to run a step above stock alternator to the start battery and high/mid range speakers. So here's the problem (or at least I think so). The alternator grounds to the engine directly through the mounting bolts so unless I make an insane alternator mount I can't avoid having 2 power sources sharing the same ground. </p><p></p><p>Is this even a problem? Can you share the same ground or will you ultimately be connecting the batteries together? I want the systems to be completely separate but the more I think about it the more I think I'm not going to be able to do it. </p><p></p><p>Any help would be appreciated. Sorry if the question is layed out poorly hard to think of the right words and terminology.</p><p></p><p>As a side note in case anyone is curious, the build I'm on is 2 15" JLW0v3's, 2 12" JLW0v3, 2 10" JLW0v3's, 2 8" JLW3v3, 2 6.5" JL C7 speakers, 2 1" JL C7 tweeters, 2 5.5" JL C5 speakers, and 2 .75" JL C5 tweeters. 8 subs 8 speakers as many different sizes as possible all on a pioneer p99 in a chevy astro. All JL amps as well except for the highs and mids only because I love pioneer for multi channel applications. </p></blockquote><p></p>
[QUOTE="Michael Poole, post: 8659459, member: 675825"] Hey guys I'm brand new to this forum and need a little help. I apologize up front if this question has already been answered. If so please shoot me a link. I've scoped the internet far and wide and can't find a good answer. Anyway, let's get to the point. I'm in the works of new audio build and I want to run a high output alternator straight to a battery bank that will power all of my subs (8 in total totaling 2700 watts rms) then I want to run a step above stock alternator to the start battery and high/mid range speakers. So here's the problem (or at least I think so). The alternator grounds to the engine directly through the mounting bolts so unless I make an insane alternator mount I can't avoid having 2 power sources sharing the same ground. Is this even a problem? Can you share the same ground or will you ultimately be connecting the batteries together? I want the systems to be completely separate but the more I think about it the more I think I'm not going to be able to do it. Any help would be appreciated. Sorry if the question is layed out poorly hard to think of the right words and terminology. As a side note in case anyone is curious, the build I'm on is 2 15" JLW0v3's, 2 12" JLW0v3, 2 10" JLW0v3's, 2 8" JLW3v3, 2 6.5" JL C7 speakers, 2 1" JL C7 tweeters, 2 5.5" JL C5 speakers, and 2 .75" JL C5 tweeters. 8 subs 8 speakers as many different sizes as possible all on a pioneer p99 in a chevy astro. All JL amps as well except for the highs and mids only because I love pioneer for multi channel applications. [/QUOTE]
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