While Al is fixing Bud's car, he tells Bud to put these batteries into something to test them before putting them into the remote car. Bud puts them in a handheld radio and finds the batteries work. They listen to the radio for a minute, then Al takes the batteries and puts them in the remote car. A minute later, Bud is listening to the radio again. The radio couldn't work since the batteries had been removed and put into the car.