Why do not we see: - "B cell battery in store"

Why do not we see "B" cell batteries in the store? This is stated in an amped-Up episode of Simon Whistler hosted by Tom It out. In an embedded up episode of Today It found out,

video image sources:https://youtu.be & https://laughingsquid.com/why-we-never-see-b-cell-batteries-in-stores

It host Simon Whistler has explained why we do not see "B" cell batteries in the store. This is because the invention of the battery has been a very wonderful variety. It actually has B batteries but they do not have anything that will usually be stocked in most stores.