Practical batteries were introduced to the public in the early 1800s, and today they help you keep your remote controls, flashlights, and kids' toys working properly. But if you need to pick up a pack at a store like Walmart, they'll most likely carry AA, AAA, C, D... wait — where did "B" batteries go? Find out why B batteries are so rare, and learn more about battery naming conventions, in the videos below.
What Happened To "B" Batteries?
Discover why "B" batteries disappeared and learn the history behind battery naming systems with Mental Floss.
How Batteries Changed The World
How did batteries get to where they are today, and where do they go from here? Find out with SciShow.
How Do Batteries Work, Anyway?
Get into the nitty gritty of battery science with this video from Es Einsteinium.
Key Facts In This Video
Count Alessandro Volta created a simple battery in 1799. 00:16
It could be dangerous to connect a single, large battery from one end to the other. 00:53
Batteries become dysfunctional when they reach a low enough voltage. 02:07
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