This 4-pack of 9 Volt Alkaline batteries is brand new and has an expiration date of either 2030 or 2031. The blocks are specifically designed for medium drain devices and have a voltage of 9 V. The chemical composition of the batteries is alkaline, and the manufacturer warranty is for 5 years. These batteries are perfect for use in a variety of consumer electronics, including single-use batteries and multipurpose batteries. The pack contains 4 batteries, and each one has a voltage of 9 V. With a brand name of Battery, you can be assured of the quality of the product.