The Panasonic CR2032 is a lithium coin cell battery designed to provide reliable power for a wide variety of small electronic devices. Utilizing lithium manganese dioxide chemistry, these 3V cells offer a nominal capacity of 0.225Ah, ensuring a steady energy supply for the gadgets you rely on daily. Each battery measures 20mm in diameter and 3.2mm in height, weighing approximately 2.9g, which makes them a standard fit for items like key fobs, calculators, and motherboard CMOS backups. They are built to function across a broad temperature range from -30°C to 60°C, meaning your devices will remain operational whether you are in a freezing winter environment or a warm indoor setting. This value pack contains six lead-free and RoHS-compliant batteries that contain 0% added mercury, making them a safer choice for both your home and the environment.