The Kingcell D 8 Pack batteries are high-performance D cell batteries with a 10-year shelf life, making them ideal for high-drain devices. With a voltage of 1.5V and an alkaline chemical composition, these batteries provide reliable power for a variety of consumer electronics. Designed for long-lasting use, these batteries are manufactured in the United States and come with a manufacturer warranty of 10 years, ensuring quality and durability for all your power needs.