motor
Motors
High power metal 4V5V8V12V 45mm planetary planetary reduction motor motor motor motor
Found that the motor speed selects several different voltages as follows:
Voltage 4V: load current 0.7A idling speed 130 rpm.
5V voltage: load current 0.7A idling speed 165 rpm.
Voltage 8V: no-load current 0.8A idling speed 268 rpm.
12V voltage: load current 1.1A idling speed 400 rpm.