All Procell batteries contain no added mercury and are rated for reliable operation in any temperature from -4 degrees to 130 degrees fahrenheit. These all-purpose alkaline batteries are economically packaged in bulk for professional applications and are individually date-coded for effective inventory management. Procell batteries are recommended for flashlights, safety equipment, electronic test equipment and more. Delivered capacity is dependent on the applied load, operating temperature and cut-off voltage. Package contains 12 C-size alkaline batteries. Guaranteed fresh for 7 years. Professional grade.