how to hook up jumper cables
Making the Connections. Begin by clamping the positive jumper clamp on the positive battery terminal of the dead vehicle. A plus sign denotes the positive terminal. Ensure that the connection is solid. Then, connect the other positive clamp to the positive terminal on the battery of the other vehicle. If necessary, use a battery terminal cleaner to clear corrosion. Next, connect the negative clamp to the negative terminal of the running vehicle.