The new brushless motor powering our latest machines is an EC (Electronic Computation) technology in small powerful DC electric motors.
Startup voltage is 9.0 volts, this is the minimum voltage required to power up the electronic circuit board that controls the motor.
9 volts at start-up will deliver 2000 rpm or 33 CPS
11 volts = 3000 rpm / 50 CPS
13 volts = 6000 rpm / 100 CPS
16 volts = 9000rpm / 150 CPS
Motor is limited to 150 CPS @16 volts which is max power.