This guy is either nuts or he has a lot of balls. Had a teacher in high school tell me fooling around with anything over 60 volts is pushing it.
https://www.youtube.com/watch?v=8hwLHdBTQ7s
https://www.youtube.com/watch?v=8hwLHdBTQ7s
So what happens when you connect 244 9volt batteries together. 2000 volts!!!
- Thread starter Reasonable Doubt
- Start date
phucheneh
Diamond Member
- Jun 30, 2012
- 7,306
- 5
- 0
2196v, to be precise. Assuming nominal voltage is actually 9v (I have no idea). Wonder why he would only get 1999 with no load?
I wanted to see what kinda arc he could get with them. They have failed me.
In summary: shoulda just played with a neon transformer.
I wanted to see what kinda arc he could get with them. They have failed me.
In summary: shoulda just played with a neon transformer.
Red Squirrel
No Lifer
When I was in IT we got a shipment of batteries, since people often would come to us for that because well, it's electrical, and it's kind of computery because electronic devices use them, so see IT! One of the packs had like 10 9 volt ones in a box. There were several of those boxes.
I just looked at it, my coworker is like "I know what you're thinking". I start connecting them all together. I wanted to see how many it would take before I get a shock. I had about 13 of em and felt a little tingle. Then I decide to lick my finger, without reducing back to 1, 2, 3 etc.... OUCH!
We decided to see what happens if you connect a 12 volt fan. It basically just caught on fire, it did not even try to spin. We put everything away before someone calls a code red, it was starting to smell bad. :awe:
That job was stressful as hell, once in a while we had to have a bit of fun like that.
I just looked at it, my coworker is like "I know what you're thinking". I start connecting them all together. I wanted to see how many it would take before I get a shock. I had about 13 of em and felt a little tingle. Then I decide to lick my finger, without reducing back to 1, 2, 3 etc.... OUCH!
We decided to see what happens if you connect a 12 volt fan. It basically just caught on fire, it did not even try to spin. We put everything away before someone calls a code red, it was starting to smell bad. :awe:
That job was stressful as hell, once in a while we had to have a bit of fun like that.
Printer Bandit
Lifer
- Mar 16, 2005
- 13,856
- 109
- 106
Red Squirrel
No Lifer
balloonshark
Diamond Member
- Jun 5, 2008
- 6,890
- 3,360
- 136
When I was young my father worked for the phone company. He had an old battery laying around from work that looked like a long 9v battery. Of course how do you test a 9v battery? By touching it on your tongue. I just figured it was a 9v battery that lasted a long time so I touched it on my tongue. After touching it to my tongue I got a nice zap and my tongue went numb. I then looked at the label and it turned out to be a 45v battery 
Ns1
No Lifer
- Jun 17, 2001
- 55,420
- 1,599
- 126
When I was young my father worked for the phone company. He had an old battery laying around from work that looked like a long 9v battery. Of course how do you test a 9v battery? By touching it on your tongue. I just figured it was a 9v battery that lasted a long time so I touched it on my tongue. After touching it to my tongue I got a nice zap and my tongue went numb. I then looked at the label and it turned out to be a 45v battery
I test 9v batteries with testers wtf using your tongue.
mmntech
Lifer
- Sep 20, 2007
- 17,501
- 12
- 0
Voltage doesn't kill you, amperage does. Those 9V batteries probably have a pretty low current rating. Since the cells are connected in series, it's only voltage that's increased.
Still, at 2000+ volts, that's going to give you a nice burn to your finger. Direct current likes to arc. IIRC, Ruby posted this video awhile ago. It's a great demo of AC vs DC.
https://www.youtube.com/watch?v=Zez2r1RPpWY
TurtleCrusher
Lifer
- Apr 20, 2008
- 10,065
- 984
- 126
I don't think my teacher meant the volts would kill you I think he meant anything over 60 volts and you may get shocked.
A lot of them had "USED" written on them, so there were probably quite a few of them that were putting out substantially less than 9V.
It's also worth mentioning that the Peukert constant for alkaline batteries is atrocious, so it's no surprise that the few arcs that he demonstrated weren't as impressive as you'd think they would be at that voltage. Not to mention the hundreds of less-than-ideal 9V-to-9V connections in that circuit!
Rubycon
Madame President
- Aug 10, 2005
- 17,768
- 485
- 126
MOT fun!
https://www.youtube.com/watch?v=ebxtqXcCrf4
This is dangerous, never attempt this without proper know how!
https://www.youtube.com/watch?v=ebxtqXcCrf4
This is dangerous, never attempt this without proper know how!
stormkroe
Golden Member
- May 28, 2011
- 1,550
- 97
- 91
This is a dangerous maxim that, while technically true, doesn't explain the whole story. 2000 volts supplied by 9v batteries will easily kill you in little time if it goes across your heart.
Phoenix86
Lifer
- May 21, 2003
- 14,644
- 10
- 81
z1ggy
Lifer
- May 17, 2008
- 10,010
- 66
- 91
While technically you're right, you're also technically wrong. A high enough voltage will obviously still kill you, since being a human means have a resistance, in ohms. It also matters where electrical contact starts, and where ground is relative to the person.
It's not exactly that simply, as DC current is worse to get electrocuted by than AC, and the higher the voltage, the lower your body's impedance will become while in contact. Since the resistance of the human body can vary greatly, the range of voltage which could kill you is rather large. However, it's not like touching 700kV while standing on a copper plate which is earthed is going to be a little tickle.
According to wiki, the 50 percentile resistance for humans @ 50Hz 1000VAC is 1050ohms. That means you'll pull roughly .95A. Certainly enough to stop your heart for good if the current passes through it.
http://en.wikipedia.org/wiki/Electric_shock
My favorite way to waste batteries is with pieces of graphite for mechanical pencil. With about 12 VDC (8 AAs) a short-ish piece of 0.5-0.7mm graphite will easily glow red hot. If you take two pieces of graphite and sharpen the ends then touch them together, you can easily make a glow that almost rivals a welder.
Aikouka
Lifer
- Nov 27, 2001
- 30,383
- 912
- 126
Back when I worked IT in college, we usually had to destroy old hard drives. Well, we decided to see what would happen with one of them... if you plugged it into the wall. The motor blew up and left a nice scorch mark on the table.
Back when I worked IT in college, we usually had to destroy old hard drives. Well, we decided to see what would happen with one of them... if you plugged it into the wall. The motor blew up and left a nice scorch mark on the table.
Heh, I worked at campus IT as well. We had a "nuker" for frying dead hard drives. I'm not sure if it just fried the controller boards or if it was actually powerful enough to demagnetize the platters, but it was great.
Good surplus drives were wiped so the uni could reuse or auction them. Normally we didn't get more than a couple of those a month, so we'd drop them in a sled to wipe them. This one time we got a whole box full to be wiped, so my friend attempted to wipe about 10 at a time by opening the side of a lenovo tower and just stacking them. The PSU didn't have enough SATA power plugs so he had to rig a second PSU just to power the drives. It was great until one of the drives slipped and something shorted, and our office smelled like ozone for the next hour. :awe:
Red Squirrel
No Lifer
Yep he explains it the best. That's always been my logic on it but was never able to really explain it.
If only the current could kill you, car batteries would kill you instantly when you touch the terminals.
Mixolydian
Lifer
TRENDING THREADS
-
Discussion Zen 5 Speculation (EPYC Turin and Strix Point/Granite Ridge - Ryzen 9000)- Started by DisEnchantment
- Replies: 24K
-
Discussion Intel Meteor, Arrow, Lunar & Panther Lakes Discussion Threads
- Started by Tigerick
- Replies: 19K
-
-
-
Facebook
Twitter