The Energizer AAA Max series batteries stand out for lasting performance and innovation. Rely on Energizer Max batteries for lasting performance in all your everyday devices. They retain their power for up to 10 years during storage, so you'll have power when you need it most. Plus, Max AAA batteries offer leak protection for up to 2 years after full use, protecting your devices. Count on Energizer for long-lasting performance and device protection for your toys, torches, wireless mice and other high-quality devices. Up to 2 years for fully used batteries in devices.