There has to be more to it than that. One guy sells a battery for $30 and makes a profit and the other sells the same battery with a different label fir $100.aybe I'm in the wrong business. I know a couple of guys at SRS have tried a Zippy and had meltdowns but it could have been user error both times. The bottom line fir me looking at this whole thing as a businessman is that there would have to be some differences otherwise the guy selling the batteries for 75% cheeper would bury all his competitors. I am glad you have good luck with them. I'll stick to my NH and gel cells thank you very muchy skills don't merit lipo power or lipo dangers