The broadside is what got me thinking. Between that and reading batteries don't understand polarity and only want to complete the circuit, and, reading about how batteries normally vent.
It's true batteries in a mechanical situation don't care about polarity, the circuit will be complete and the atomizer will fire either way.
Thing is if the battery has a tear or something in it and it goes unnoticed, it will make contact with the body of the tube and if it's facing toward 510 that means it will auto fire but if the negative is facing the 510 is will hard short the cell and depending on the cells chemistry can either be bad or really really really bad.
So it's more of a safety thing rather than a performance thing.
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