Originally Posted by Fourdan
I agree 100% with Modisc
I have tested more than 300 BLDC motors, varying V.
Kv stays in a very small fork (generally < 1%)
And this is well explained by the Kv formula provided in the leading thread in this forum ^^
Louis, have you noticed significant variation in Kv when using different ESC to test the same motor?
Another issue that I am not sure now, is that whether ESC has a low-speed limit? I Used a Hobbywing ESC trying to drive a servo motor with original coil and connection, Kv of the motor being 15rpm/v. The motor cannot start at 6S voltage.