Does anyone happen to know why rechargable NiMH AA batteries are 1.2V when alkaline AA batteries are 1.5V? (Okay fine I'll go read Wikipedia)

@grumpy I don't know the details but each electrolytic cell chemistry (and therefore each battery chemistry) has its own specific voltage. A lead-acid battery cell, for example, is 2.1V. A 12-volt car battery is a 12.6 volt battery consisting of six of those cells in series.

@n8chz @n8chz that makes sense. From what I now understand, that voltage comes from the electrochemical potential so different chemicals == different voltage, regardless the size of the cell. Electricity is such a ubiquitous phenomenon yet so challenging (at least for me) to wrap my mind around. Thanks!

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