How to divide the battery size

- Sep 11, 2019-

Generally divided into: 1, 2, 3, 5, 7 number, of which 5 and 7 are especially commonly used, the so-called AA battery is the 5th battery, and the AAA battery is the 7th battery! AA and AAA are all descriptions of the battery model.

E.g:

AA is what we usually call the 5th battery, the general size is: diameter 14mm, height 49mm;

AAA is what we usually call the 7th battery, the general size is: diameter 11mm, height 44mm