Panasonic's AA and AAA alkaline plus power batteries protect power for up to 10 years (when unused and stored properly) and feature Panasonic's unique anti-leak technology. Alkaline plus power batteries are an affordable, reliable battery power choice for a wide variety of household devices including toys, flashlights, wireless keyboards and mouse, remote controls, and many other devices. For over 85 years, Panasonic has been one of the world's leading manufacturers of battery and energy solutions. From cutting edge power for clean energy automobiles, to OEM and branded battery solutions, Panasonic remains at the forefront of the battery industry. All of Our batteries are manufactured in Panasonic factories worldwide.