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Message: <blockquote data-quote="cmidrange" data-source="post: 8901646" data-attributes="member: 690279"><p>Hello all, was wondering if it would be ok to run those two batteries together with no isolator. Lythium would be brand new the stock has some years on it but is completely fine. GP car audio customer service says it would be fine and recommended it, but just seems a bit extreme. The stock battery Infront has a 4 gauge big 3 (yes I know 0 would be better) and the supply for the lithium in the back would come from a positive 0 gauge from the alternator and then a 0 gauge ground.  The alternator is aftermarket with 110 amp idle and 220 when revved. Front battery delete is probably the best but its not an option for me, the car is old and if something goes wrong I don't want it to be too far from stock if I have to sell it. Thanks!</p></blockquote><p></p>

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