Our Energizer AAA batteries are stored in a controlled environment to guarantee the freshest charge reaches your door. Your order will arrive quickly –– oftentimes shipped same day as your order placed. The Energizer AAA battery operates reliably in temperature extremes of -18° C to 55 C. Each Energizer AAA has a minimum 4-year shelf life and is date coded with the expiration month and year stamped on each battery. The Energizer AAA alkaline battery contains no added mercury. Special disposal not required.