0phalanx447 9 years ago ReplyUpvoteTake your multimeter, and turn the dial on it to "Volts DC"- The V symbol with a line over it, or a dotted line, or the only "V" present. Take your red lead from the meter and put it against the "+" end of the 1.5V battery. Take the black lead and place it up against the "-" end of the battery. You can tell which end is which on the battery by the markings on the sides. Good luck!