The Panasonic CR1216 is a lithium coin cell battery designed to provide reliable power for a variety of small electronic devices. Utilizing manganese dioxide lithium chemistry, this 3V cell offers high energy density and a low self-discharge rate, which means it can stay in your device for a long time without losing its charge. It is built to function across a wide range of operational temperatures, making it a dependable choice for items you use in different environments. Measuring 11.6 mm in diameter and 3.1 mm in height, this compact battery weighs approximately 1.3 g, allowing it to fit easily into tight spaces. Because it is mercury-free, it is a safer choice for both the user and the environment. You will typically find this model powering watches, calculators, and remote controls, where a consistent and long-lasting energy source is essential for daily operation.