Mildly Interesting

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This 9v battery contained six cells stacked like a layer cake (lemmy.sdf.org)

submitted 11 months ago* (last edited 11 months ago) by [email protected] to c/mildlyinteresting

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Picture of a disassembled Duracell 9v battery. Below the terminal assembly is a clear plastic case where you can see six sets of stacked rectangular terminals and fillings.

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[–] [email protected] 4 points 11 months ago* (last edited 11 months ago) (1 children)

Btw, why do the flat ones (4.5V i think?? use 3 round batteries instead of rectangulars? They could have more capacity due to less space wasted.

[–] myplacedk 2 points 11 months ago

It's cheaper, especially for such a relatively uncommon battery type.