The Renata CR2450N is a 3-volt lithium coin cell battery. It features a large capacity of up to 530mAh and a long shelf life. It has a diameter of 24.5mm and a height of 5.0mm. This battery is ideal for use in a wide range of devices, including many watches, car keys, and toys, as well as heart rate monitors, glucose monitors, calculators, and more. It also has a high discharge rate, allowing it to reliably power devices that require more power.