Dude.. you do not know what you are talking about.. I researched this for months... MONTHS. There was a LARGE thread on Caco about this and it died off because real world testing showed it to be invaluable in all sorts of configurations. I was even on the phone with Maxwell and iOxus about this stuff. If all you want to do is burps only.. then sure, go buy a bunch of used, LOWER THAN RATED, caps. Just like batts, caps lose their output potential. Next, caps aren't twice as fast as charging, lol... Caps do not charge like batteries. Caps charge and discharge rate is solely dependent on the voltage different between the cap and the source connected to it. You can go through all the formulas and all that.. That's good, possible, if the caps were new. Then we are talking $75 shipped a pop. It is a scientific fact that batteries store more reserve per $1 than UCs do. If you want to mix batts and UCs together in parallel, i hope you have plenty of Electrical knowledge because if the voltage difference is just 0.01v difference in the line, you better be wearing some highly insulated clothing. And in real world testing, not a single test has confirmed mixing UCs series'd to 13v paralleled with batteries showed any performance increase whatsoever. We have a guy here who just sold his. He was running 2 300A alts and 96, yes, NINETY SIX UCs. The only reason why he didn't use any batteries is because his alternator system could supply most of the demand while the UCs were there just as a buffer. If he didn't have the alts to do it.. he would have need probably about 300 UCs. You wanna fork out that kinda money, go right ahead. Trying to save you time and money. You didn't just find the source for secret power that's going to save you money.. It's going to empty you out financially, but some people have to learn for themselves so if you must own them.. then go right ahead and buy as many as you want. I'd highly suggest contacting Maxwell first because some of the wording and ideas you believe on how these work isn't true and you need more knowledge.