Energizer Max D cells are perfect for a wide range of applications. They are ideal for both low drain applications like radios and low output lights to higher-drain devices like toys, stereos and more powerful lights. Product Specifications Package Quantity: 2 Classification: Alkaline Chemical System: Zinc-Manganese Dioxide (Zn/MnO2) No added mercury or cadmium Designation: ANSI-13A, IEC-LR20 Nominal Voltage: 1.5 volts Nominal IR: 150 to 300 milliohms (fresh) Operating Temp: -18 C to 55 C (0 F to 130 F) Typical Weight: 148.0 grams (5.2 oz.) Typical Volume: 56.0 cubic centimeters (3.4 cubic inch) Jacket: Plastic Label Shelf Life: 10 years at 21 C Terminal: Flat Contact