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cheap drones with brushless motors MN505-S KV320 KV380
cheap drones with brushless motors have small permanent magnets made from iron and cobalt alloys. Using special alloys in the magnets makes them able to be smaller and lighter. Lithium-ion batteries are currently used to power drones as theweight to power storage ratio is better than any other battery. Efficiency wise, brushless motors are typically 85-90% efficient whereas a brushed DC motor is 75-80%. Windings are present on the rotor for a brushed motor as compared to in a stator for a motor. he selection of an electric FPV Drone Motor has an enormous influence on the flight characteristics of the multicopter. Tiny variations in the construction of a motor result in significant impacts regarding the weight, responsiveness and total power of the multicopter.