Submitted by OneGuyJeff t3_1274d8q in explainlikeimfive
MindStalker t1_jeeqfnl wrote
Reply to comment by th3h4ck3r in eli5: Why do seemingly all battery powered electronics need at least 2 batteries? by OneGuyJeff
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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