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<blockquote data-quote="boostNbeer" data-source="post: 6486765" data-attributes="member: 616485">I think I may have some electrical trouble here. Ive been having some troubles with voltage drop since I upgraded. Heres a pics of its setup for reference if anyone sees trouble<img src="http://img22.imageshack.us/img22/4272/95484679.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />I used to have the factory 100amp alt, and an optima blue top main battery. Worked great for 1500rmsThen I bought a Visonik V4000XD and am running it @ 1ohmSo to back up the power I would need for that, I went and grabbed 2 NSB90 batteries, and put them in the back of the truck, along with 2 2/0 cable runs to the main batt. ALL cable is 2/0 welding cable, big 3 aswell. Didnt work, voltage was still dipping into the 11&#039;s not even on full tilt (amp would protect @ 11 volts)So for the last week I went and bought a 200 amp alty and installed it in my car ALONG WITH THE FACTORY ALT. So 300+amps @ 2k rpm.BUT STILL, voltage drops just as fast, drops like a rock as soon as any hard notes come on. Almost like the 2nd alt was never even added....Im pretty stumped as to whats going on, I know the visonik makes 3kish rms and I have close to 1k rms for mids. But it is dropping this low without even going full tilt, it usually cuts off at about 17 of 40 volume....Only thing I can think of is my rear batterys ground possibly? They are grounded to the floor from a factory hole, but still sanded bare etc.</blockquote>

[QUOTE="boostNbeer, post: 6486765, member: 616485"] I think I may have some electrical trouble here. Ive been having some troubles with voltage drop since I upgraded. Heres a pics of its setup for reference if anyone sees trouble [IMG]http://img22.imageshack.us/img22/4272/95484679.jpg[/IMG] I used to have the factory 100amp alt, and an optima blue top main battery. Worked great for 1500rms Then I bought a Visonik V4000XD and am running it @ 1ohm So to back up the power I would need for that, I went and grabbed [B]2[/B] NSB90 batteries, and put them in the back of the truck, along with [B]2[/B] 2/0 cable runs to the main batt. [B]ALL[/B] cable is 2/0 welding cable, big 3 aswell. Didnt work, voltage was still dipping into the 11's not even on full tilt (amp would protect @ 11 volts) So for the last week I went and bought a [B]200 amp alty[/B] and installed it in my car ALONG WITH THE FACTORY ALT. So 300+amps @ 2k rpm. BUT STILL, voltage drops just as fast, drops like a rock as soon as any hard notes come on. Almost like the 2nd alt was never even added.... Im pretty stumped as to whats going on, I know the visonik makes 3kish rms and I have close to 1k rms for mids. But it is dropping this low without even going full tilt, it usually cuts off at about 17 of 40 volume.... Only thing I can think of is my rear batterys ground possibly? They are grounded to the floor from a factory hole, but still sanded bare etc. [/QUOTE]

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