how fast do you want to charge your batteries?? high end chargers can charge and discharger a lot faster like 40+ amps/ which is only a few mins of charging for most batteries. That also have nice screens with lots of nerd info that i enjoy seeing. But i'll tell you this, here in California the most popular racing for 1/10 scale is stock 17.5/21.5 racing and the vast majority the fast guys all have ichargers and all charge and discharge at 40+amps.