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Where are all the B batteries ?

Batteries such as AA and AAA are common, but where are all the other letters ?


Recent comments on this video
Comment icon #1 Posted by acute on 20 May, 2018, 13:33
In the future, sex robots will run on triple-X batteries. 
Comment icon #2 Posted by Redefining Success on 20 May, 2018, 22:57
There is also AAAA batteries, only use I've actually seen is in the streamlight pen torch, mega expensive for their size but a quality 9v PP3 battery has 8 inside.  The 6v square battery has 4 'F' batteries in side which are nearly 50% longer than a D battery, so you can run a 3D cell torch off 2 F batteries. And some of the smaller cylindrical battery's, are made up of AG13 or equivalent, button cell batteries.     
Comment icon #3 Posted by Almighty Evan on 23 May, 2018, 18:52
Demitri Martin explains this in one minute.  

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