2014 VW CC Sport
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it’s expensive for what it is. I spent maybe 300$ for 36ah of lithium ltoI wouldn't call it little power. I'm running around 6k with a RSV-5 and a PWR-5 with hardly any voltage drop on a stock 130 amp alternator. The RSV-5 alone handled 4k on its own and didn't do bad on 6k. My voltage would drop to mid/low 13s at idle with just the RSV-5. I don't feel 700$ is expensive, look at how expensive everything else we run in our sound systems is. I will eventually upgrade the alt when the warranty expires but at this point its not even necessary.