Experience long-lasting power with Dorcy Mastercell AAA Alkaline battery packs, designed for devices that use AAA batteries. These packs boast a 10-year shelf life and come with an expiration date code on each battery for easy tracking. The foil battery jacket and bilingual packaging add to the convenience and reliability. Plus, these batteries are mercury and cadmium free, making them environmentally friendly. They perform excellently in temperatures ranging from 0 to 120 degrees Fahrenheit (-17 to 49 degrees Celsius). Each pack contains 8 batteries, ensuring you have a reliable power source for your devices. (Model: 41-1638)