AmazonBasics AA Alkaline Batteries are industrial-grade double A batteries with a 5-year shelf life. This 40-pack provides reliable performance and high energy density for various devices. They are suitable for remotes, wireless mice, headsets, radio equipment, electronic tools, and smart home devices. These batteries feature anti-corrosion components and a zinc composition. They are cadmium, lead, and mercury-free, making them a safer choice. These are single-use, disposable household batteries and are not rechargeable. Ideal for household, industrial, OEM, and professional use.