9 Volt Batteries Contain Six AAA Batteries

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9 Volt Batteries Contain Six AAA Batteries

Friday, January 12th, 2007 | Nifty |

More things I didn’t know: there are six AAA batteries inside a 9 volt battery. Actually, they’re AAAA batteries which are smaller diameter, but they’ll apparently work in many devices that uses AAA batteries. UPDATE: One person at the link below reported that it damaged his electronics, so reserve this for McGyver-style emergencies. And who doesn’t have those?

Hard to believe, but here’s a video demonstration. This is definitely going on this year’s list of 2,007 things I learned in 2007.

4 Comments to 9 Volt Batteries Contain Six AAA Batteries

Michael
January 12, 2007

Well I have learned something new today.

drstrangegun
January 12, 2007

they didn’t used to… they used to have 6-7 “prismatic” cells in a stack. When I was a kid I ripped quite a few apart when they died…

Back when I was selling batteries for my soul.. er.. a pittance, AAAA batteries were a new thing, made available for a slew of new pen-sized devices, mostly lasers and little pen-clocks. I bet they just shifted production over when it became cheaper to cram the cases full of these instead of the prismatics.

simon
January 23, 2009

actually their called AAAA’s or quadrouple A’s and i think that you can actually use them as triple A’s sometimes but i havn’t tried to use them as AAA’s