Renata CR2477 Battery 3v Lithium CR2477N
Made by the very high quality manufacturer Renata in Switzerland, this 3 volt lithium battery is very unusual in size. 24mm diameter and 7.7mm thick. Please note this is the CR2477N version which has a lip around the top of the battery. The CR2477N battery, in most applications, will replace the CR2477 battery. The Cr2477N battery measures 24.5mm diameter across the positive end and 24.5mm across the negative end.