425 cannot float to 3 16. The most mainstream light-emitting floating battery 425 and 3 16 have different sizes, different rated capacities and different output currents. From the rated capacity, 425 is more than three times that of 3 16. 425 indicates that the maximum diameter of the battery is 4 mm and the total length is 25 mm. 3 16 indicates that the maximum diameter of the battery is 3mm and the total length is16 mm. The batteries are different in size.