The Panasonic CR2016 is a compact lithium manganese dioxide button cell designed to provide reliable power for small electronic devices. With a voltage of 3 V and a capacity of 90 mAh, this primary battery is well-suited for low-drain applications such as car key fobs and remote controls. Measuring 20.0 mm in diameter and 1.6 mm in height, it weighs only 1.6 g, making it an unobtrusive power source for slim gadgets. You can rely on its 60-month shelf life to keep a spare ready in your drawer, ensuring your devices stay functional without frequent replacements.