A CR2032 3V battery is a small, round, lithium coin cell that provides a reliable power source for various electronic devices. Commonly used in devices such as watches, calculators, key fobs, medical devices, and toys, this battery is known for its long-lasting performance and compact design. Key Features: Voltage: 3V Chemistry: Lithium Diameter: 20mm Thickness: 3.2mm Capacity: Typically around 220mAh Long Shelf Life: Can last for up to 10 years when stored properly. Temperature Range: Operates efficiently in temperatures between -20°C and 60°C. Applications: Watches Remote controls Key fobs Medical devices (such as glucose meters) Toys and games Security systems The CR2032 is widely recognized for its stable discharge rate and ability to power low-drain devices for an extended period, making it an ideal choice for applications requiring a small but dependable energy source.