this post was submitted on 04 May 2024
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9v batteries are actually 6x AAAA batteries in a little case.
If you want to also be pedantically technically correct, 9V batteries are often made from 6 AAAA cells. Most of the things people call battery are actually cells, the common batteries are 9V (6x1.5V cells) and 6V (4x1.5V cells) alkalines, 12V lead-acid (6x2V cells) and electric vehicle batteries (lots of 3-ish volt cells of various lithium technologies)