Energizer 377 Watch/Electronic Battery - For Multipurpose - SR66 - 24 mAh - 1.55 V DC - 2 / Pack
Silver Oxide Batteries are designed for continuous low-drain and high pulse on demand so they are perfect for watches, toys, glucose monitors, calculators and more
At 1.55 volts, the silver oxide/zinc alkaline battery offers higher voltage than comparable mercury batteries and a flatter discharge curve than alkaline manganese dioxide batteries
Mercury-free battery also has good resistance to shock, vibration and acceleration
Cell size is 377. It is a replacement for 376/377, 377BP, D377, SB-AW, SR626SW and SR66.