The Energizer E300315404 9 V Batteries are high-quality, single-use batteries designed for various consumer electronics and devices. With a voltage of 9 V and a lithium-based chemical composition, these batteries provide reliable and long-lasting power for your devices. This product offers one count of 9 V block batteries, making it a convenient and essential item for everyday use. Trust in the Energizer brand for dependable battery performance and durability.