The 20 x AAA EVEREADY Zinc Carbon SUPER HEAVY DUTY Batteries LR03 are high-quality single-use batteries designed for long-lasting power. Manufactured by EVEREADY, these batteries have a voltage of 1.5V and a chemical composition of zinc-carbon. With a long expiry date, they are suitable for various devices such as sound and vision equipment. Each unit contains 20 batteries, making them perfect for use in multiple applications. Manufactured in Poland, these batteries are reliable and efficient for all your power needs.