With long lasting power and reliable performance, the Sony Murata CR2025 is a coin cell that is perfect as a replacement watch battery. This small battery packs a surprising 3 volt punch and contains a 160mAh capacity that keeps it running longer than competing cells. CR2025 batteries have a multitude of uses beyond watches including medical devices, security sensors, key fobs and more. The Sony CR2025 is manufactured with lithium chemistry that provides a long shelf life and long-lasting life in your everyday electronics.