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Exploding 9-volt Batteries? Answered

I have always wondered if 2 9-volt batteries connected pos. to neg. and neg. to pos. will it explode? Look at the picture if you need help understanding what I mean.

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Lithium Rain

9 years ago

! !! !!!! Awesome-I thought this was impossible! I'm going to hook up several 9v like that!

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ThelonelysandwitchGoodhart

Reply 9 years ago

or you had 3 generations of electricians in your family and have a high tolerance for shock.

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GoodhartThelonelysandwitch

Reply 9 years ago

Not me, for sure......I really HATE being shocked.....oddly enough, I took up electronics as a hobby :-)

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GoodhartThelonelysandwitch

Reply 5 years ago

We must face our fears :-)

As one motivational speaker would say: fill the bath tub, pull the plug, fight the current LOL

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OrngrimmGoodhart

Reply 5 years ago

Fun with a few 9V batteries. (244 of them) :
http://www.youtube.com/watch?v=8hwLHdBTQ7s

YIKES!!!

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Orngrimm

5 years ago

In the swiss army we used crappy zinc carbon ones as hand-warmers in the winter. :)
Never exploded nor leaked...

But high-current ones like alkanine or rechargeables (Hell: Litium! If i think about that, it gives me shivers) are a bad idea because the pressure-build-up may actually blow it...

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11010010110

9 years ago

and btw dont do it with non alkaline or zinc carbon batteries. other types can explode. rechargeables are very likely to explode

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Gasoline+Ducttape

5 years ago

i dont think connecting them like this would work, it would have to be a closed circuit for heat to build up. take 2 and connect the pos to neg on both

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swolff

7 years ago

Actually, yes this does work. When I was younger, someone in my school did this. The batts defenently exploded, and there was a battery acid on the walls and there was a loud crack. I believe the batts have to be fresh though

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zachninme

9 years ago

I remember when I was really little I did this with two batteries. I then held them up and tried to "charge" the one on the bottom by letting the energy flow into it. Thank god they were both dead ;-)

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NachoMahma

9 years ago

. No. You've created a 45V battery. Measure the voltage between the two open terminal and see. . If you mean connecting the terminals of just two "transistor" batteries, they will discharge quickly and may get hot (leading to swelling), but shouldn't explode.

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kelseymhNachoMahma

Reply 9 years ago

I think what thelonelysandwitch is asking is more if you take two 9V and connect them directly to each other (not a series like the illustration), would they explode? I believe the answer is, "No." They'll get hot, and the contents may very well leak out, but they won't go, "Boom."

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kelseymhkelseymh

Reply 9 years ago

Oh, duh (again). I should read more carefully when I'm posting late at night. What I wrote is exactly what NM had in his second paragraph. Pardon me...

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guyfrom7up

9 years ago

you can still blow a battery up this way. These guys hooked up like over a hundred 9 volt batteries and drew arcs from the terminals, but then one of the batteries exploded! See it on youtube

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11010010110guyfrom7up

Reply 9 years ago

awesome ! more than shocking people with a stack of CR2032s (the battery in computer mainbard) in a paper tube !

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11010010110

9 years ago

if the internal resistance of one battery is higher it'll get more power than it's fair share in the short circuit

with this higher power it'll heat even more and maybe enough to explode

seems unlikely in 2 battery setup but possible with more batteries