Energizer Industrial Alkaline D Batteries. Energizer part number EN95 (Box of 12/ or Case of 72). Energizer EN95 Alkaline D Size Batteries are 1.5V, ~16000 mAh capacity each. Zinc-Manganese Dioxide (Zn/MnO2) chemistry. No added mercury or cadmium. Metal jacket w/miniature flat contact terminals. Shelf Life: 10 years at 21°C. Designation: ANSI-14A, IEC-LR14