I am trying to make an electric bike (this is my first electrical project with motors).
To save money, I bought a used electric lawnmower and extracted the motor, as well as two 12V batteries in series (resulting in a 24V battery).
Now, I need to get a controller for this configuration, but I lack knowledge in selecting the correct controller. Someone told me that typical electric bike controllers cannot be used with simple, brushed DC motors like the one I got from a lawnmower machine. Is this true?
Are there different types of controllers that must be used depending on the type of motor you have? Does anyone have a source that describes all the types of controllers?