[crazyjr]

I'm not the best at brushless, but there are a lot of things going on at different cell counts:

As voltage goes up, resistence goes up and has the same effect as going up a wind (actually a wind may be drastic but you get the point)

As voltage goes up and temp goes up the magnet loses a little of its magnetism and kv goes up a little (opposite of the resistence in the winds)

Most of what i learned was from a semester of electronics and self experimentation with brushed slot cars, 1/24 scale 12 volt commercial setups.

One thing nobody ever mentions is bearings, cheap ones have a grease, that when the motor spins faster, can cause resistence. More expensive ones use a light oil and will spin faster with less resistence

As i said i'm no expert but there are a lot of things going on that i do understand and if i'm wrong about something, Please speak up as i want to understand as much as i can