is cr2450 the same as cr2032

No, CR2450 and CR2032 are not the same. CR2450 is a lithium coin cell battery with a diameter of 24.5mm and a thickness of 5.0mm, while CR2032 is also a lithium coin cell battery but with a smaller diameter of 20mm and a thickness of 3.2mm. The CR2450 battery is commonly used in devices such as digital watches, calculators, remote controls, and medical devices, while the CR2032 battery is often used in smaller devices like key fobs, car alarm remotes, and electronic toys. Both batteries have a long shelf life and reliable performance, making them suitable for a wide range of applications. When choosing the right battery for your device, it's important to consider the specific size and voltage requirements to ensure compatibility.