on 2S I would have 19600 rpm (max.)
on 3S I would have 29400 rpm (max.)
on 4S I would have 39200 rpm (max.)
So... 3S seems to be the most reasonable option but I already have 2 X 2S batteries [&o]
Is it a good configuration?: 2650KV 3674 motor + 120Amp ESC + X442 prop. + 3S 6000mAh 30C bat.
Is it possible to connect one 2S battery in series with a 1S battery? Do 1S 6000mAh 30C batteries exist?