DRC PC2400BKD -- AAA Duracell® PROCELL® Alkaline Batteries Economically packaged in bulk for professional applications and individually date-coded for effective inventory management, the PROCELL® line is designed for efficiency. Manufactured to strict specifications, they meet the highest standards of durability and longevity. Guaranteed fresh for 7 years, all PROCELL® batteries contain no added mercury and are rated for reliable operation in extremes from —4°F to 129°F. Sold by the Pack of 24.