You could make the second number free energy, because ultimately u have to charge the battery, of course that can't be able to generate same power or energy but it will give u sufficient.
Hi, i have the same pulley as yours and i cant screw the pulley to the centre if the shaft of the motor is rounded. Did you put something in the pulley?
Sir, I am so much curious and interested in your videos, I want to let me know that one dc motor is different in which three wires already fittings coming out from the bottom of it. Can I used the same two dc motors like RS 775 ?