Power up your electronics with the battery that lasts. The Energizer 123 Photo Lithium Battery works great with 35mm film cameras and LED flashlights. The three-volt batteries provide your electronics with the power they need to keep them running for a long time. This pack includes two batteries, so you can have a back-up when you need it. Lithium technology enables these batteries to have a ten-year shelf life. Give your electronics the juice they need with help from Energizer.