Are NiMh wrong voltage also though dan ? Certainly, I am sure your cells have more volts than mine.. Which already makes a massive difference, like you say, to controlled classes
I have no idea on this, but I do read various websites claiming their cells are 1.2v+ - meaning OVER 1.2v and by your own words, illegal.
I can't go racing a 19turn touring car and be competitive with my old cells - but I can go and be competitive with one single lipo!
