EVEREADY® Super Heavy Duty is the affordable Carbon Zinc solution that provides power for you and your family’s basic power needs. * Leak Resistance Guaranteed * Zero Added Mercury * Chemical System: Zinc-Manganese Dioxide (Zn/MnO 2) * Designation: ANSI-13D, IEC-R20 * Battery Voltage: 1.5 Volts * Operating Temp: -18ºC to 55ºC (0ºF to 130ºF) * Average Weight: 89.0 grams (3.1 oz.) * Volume: 53 cubic centimeters (3.2 cubic inch) * Average Capacity: 8,000 mAh to 0.8 volts * (Rated at 25 mA continuous at 21ºC) * Cell: One No. 50 (size "D") * Packaging Size: 2 batteries per pack