Hi everyone, I am a senior Chemical Engineering student working on a project for a course of mine designing a remote control car. We have made 10 batteries from hand that each produce roughly 1.5 volts each. The car is fairly heavy and we only have a small electric motor to work with, and thus we would like to maximize the torque the motor produces. My question is, to maximize torque, would we want to put the batteries in series to maximize the voltage applied to the motor or in parallel to maximize the current through the motor? An explanation of why or what either case does physically to the motor would be great. Thanks in advance!