How to determine cell count?

[wfdfiremedic]

This is a sort of newb question, but it seems that Novak with their HV max line has completely disregarded this formula. For instance, their 4400kv motor with 14.4 volts = 63,360 rpms. Is this why their motors run so darn hot because in fact they are really not appropriate for an e-maxx application? Their new 4.5 is even a higher KV rating than the 6.5. Why would they make such high kv motors for a heavy rc application? Would it have to do with the system being sensored?

Thanks,
Chris