Submitted by OneGuyJeff t3_1274d8q in explainlikeimfive
th3h4ck3r t1_jee0wjl wrote
Reply to comment by TheBestMePlausible in eli5: Why do seemingly all battery powered electronics need at least 2 batteries? by OneGuyJeff
You absolutely can, but by now it's standardized that A-series batteries (AA, AAA, even AAAA) will put out 1.5 V, same as C and D batteries. It's societal inertia that prevents it, nothing else; why change if it ain't broken?
Button cells, however, commonly work at 3 V, and are standardized at that voltage.
MindStalker t1_jeeqfnl wrote
What? No.
https://en.wikipedia.org/wiki/Button_cell#Electrochemical_system
Lithium button cells operate at 3V, most other chemistries operate at around 1.5V.
The voltage is the chemistry, you can stack multiple layers (button) together to create higher voltages.
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