Can you replace a CR3032 with a CR2016?

No, you cannot replace a CR3032 with a CR2016. While both are lithium coin batteries, the CR3032 is thicker (3.2 mm) compared to the CR2016 (1.6 mm). This size difference means the CR2016 would not fit properly in a device designed for a CR3032, and it would also provide less capacity, leading to shorter battery life. Always use the specified battery type for your device to ensure proper functionality and safety.