DuraLock Power Preserve Technology. Duracell silver oxide button cell battery is used on medical devices, watches, toys, calculators, and more. Equivalent to: SR66, SR626W, 376, 377, S626SW, D377, D376, V377, AND SR626. Type: 376/377 \nBattery Power Type: Silver Oxide \nCapacity: 24 mAh \nVoltage: 1.5V \nDimensions: 2.6mm H. x 6.8mm Dia. \nWarranty: 3 Yr. Shelf Life \n