Are cr2450 and cr2032 common?
cr2450 and cr2032 are not
universal. Cr2450 and cr2032 batteries are different in size. CR2032 has
a diameter of 20mm and a height of 3.2mm, and CR2450 has a diameter of
24mm and a height of 5mm. The rated capacity of the battery is
different, CR2032 is 200-240mAh, CR2450 is 520mAh. CR2450 can be used
instead of CR2032 when there is no external size limitation; if CR2032
is used instead of CR2450, the capacity will be less than half of it.