th3h4ck3r

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th3h4ck3r t1_jee0wjl wrote

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.

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