The CR1220 3V button battery is a small, round, and flat battery that belongs to the CR series of lithium coin cell batteries. It has a diameter of 12mm and a thickness of 2.0mm.

One of the main advantages of the CR1220 3V button battery is its compact size, which allows it to fit in a variety of small electronic devices such as watches, remote controls, medical devices, and electronic toys. It provides a stable and consistent 3V power supply, ensuring reliable and efficient operation of these devices.

The CR1220 3V button battery has several key features. It offers a long shelf life, meaning it can be stored for extended periods without significant loss of power. It has a low self-discharge rate, allowing it to retain its charge for a long time even when not in use. Additionally, it has a wide operating temperature range, making it suitable for use in different environments.

Different models within the CR series, including the CR1220, may vary in terms of capacity, voltage, and performance characteristics. These differences can affect the battery's overall lifespan and power output. It's essential to select the appropriate model that meets the requirements of the specific device and ensures optimal performance.

The actual usage time of a CR1220 3V button battery depends on factors such as the power consumption of the device, the frequency of use, and the operating conditions. Generally, these batteries can power devices for several months to a few years. Regular monitoring of the battery level and timely replacement when necessary will ensure uninterrupted device functionality.