rhino369 t1_jef2t1c wrote on March 31, 2023 at 3:28 PM

Reply to comment by I-melted in eli5: Why do seemingly all battery powered electronics need at least 2 batteries? by OneGuyJeff

But then you need a special battery for a special product. But I can use AA or AAA batteries in a bunch of stuff. If something needs 6v? They require 4 batteries. If they need 4.5 V they can just use 3.

TheSkiGeek t1_jefcrhw wrote on March 31, 2023 at 4:33 PM

I mean… if there was really widespread demand for it, you could make something AA-cell sized that is actually two smaller 1.5V cells stacked in series. That’s basically what a 9V battery is, it’s six little 1.5V cells packaged up.

But most things that want 3V or more have enough space to hold two or more AA or AAA cells. So there just hasn’t really been enough demand to make a new widespread size+voltage format for consumer usage.