This pack contains 10 Energizer AA Ultimate Lithium Batteries. These batteries are the worlds longest lasting AA Battery for high-tech devices and the best for digital cameras. Ideal for trade use and professionals using large amounts of batteries. Other applications the Lithium AA Batteries can also be used within photography equipment, torches, radios and remotes. Lithium AA Batteries are also known as L91 size batteries and can also work at low temperatures where others will not. Leak-resistant and boasting a shelf life of up to 10 years. Energizer Part Number: S15443