Why Aren't There Any B Batteries?...
We learn about different battery sizes when we're kids, which is when I learned it took... ...To find out we have to go back to the 1920s, when battery cell sizes were standardized by the government agencies, War... ...nment agencies...
https://www.neatorama.com/2016/12/27/Why-Arent-There-Any-B-Batteries/
