ACDelco AAAA Super Alkaline Batteries are equipped with advanced technology you can count on. ACDelco alkaline batteries perform better than the competition in high-drain and super high-drain devices, and they provide consistent discharge performance. ACDelco alkaline batteries are designed for long shelf-life with stainless steel pre-coating that prevents leakage and advanced ingredient formulation that helps maintain power over time. This recloseable storage pack includes 10 AAAA batteries great for a variety of household devices, including LED penlights, computer styluses, glucose meters and blood monitors. The 1.5-volt batteries contain no mercury or cadmium, making them a smart choice for your family and for the environment. A trusted national brand, ACDelco offers a wide variety of batteries you can count on, including alkaline batteries, lithium coin cell batteries, rechargeable batteries, and car batteries.