
There's a local guy that makes this box mods called am that are basically wooden and mechanical you know mosfet and all that. He has a bunch of different varieties but its one in particular that has me kind of lost. Its called a parallel series box. The way it works is he has 2 18650 stacked on top of 2 18650 s. The way the guy explained it to me is that you have four batteries but you're still only running 8.4 volts but you double your amperage at the same time. It kind of caught me off guard and I was wondering if somebody could explain it to me at a bit better than that.