DJI Agras T20

The voltage of the battery has a great influence on the motor. The drone motor spins faster with higher voltage and draws more current. You need to be sure of how much thrust the motor will produce and how much current it will draw. You can choose ESC according to this current draw of motor and propeller combination

How does the drone engine work?

Drones use their rotors, which consist of a propeller connected to an engine, to glide through the air. During the glide, the downward thrust of the vehicle is equalized to the gravitational force working against it. When the rotors generate a force greater than gravity and accelerate, the drone takes off.