I did have a friend with a stupid low build where he melted part of the wrapper on an MNKE battery, he re-wrapped it and carried on. Not something I'd do, or recommend. But that's as close as I've seen personally.
Yes................... on YouTube that had to wrap a Rag around the mod due to Excessive heat...........went thermal as the battery drained
He threw the mod in a waste container in his bed room.![]()
In the first scenario, yes, you're an idiot. In the second, you might just be ignorant. Both would be mostly avoidable, with the proper set of precautions.
View attachment 549866 View attachment 549867 So my local community has been up in arms lately due to a tube exploding. I'll fill you in on the details as I understand them and have been verified by multiple people close the the explosion.
Day of a cloud comp, local shop is hosting three comps one of which is a .1 Tube Class.
i pay special attention to exploding mod threads. i make my own mods and have been using them for years without incident. since this thread seems to have many experts,maybe some could assess the relative safety (or lack of) of this design.there is a regular coil spring in the switch and the positive insulator is nylon66. all my batteries have a clear wrapper over the original.
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I have a general question, if anyone has an answer. Are there any confirmed cases when a build that was too low actually sent a battery into thermal runaway/resulted in venting?
I contend that "the mod got so hot I couldn't hold it anymore" would not be a detail easily left out. Also, if the mod got too hot, there would be no injury to the hand. I guess I'm trying to say that a venting due to a low build would "look" different, in most respects, from a hard short incident.Oh-ya, we have it on film. .... The Towel Guy ....
oops crxess beat me to it.
I contend that "the mod got so hot I couldn't hold it anymore" would not be a detail easily left out. Also, if the mod got too hot, there would be no injury to the hand. I guess I'm trying to say that a venting due to a low build would "look" different, in most respects, from a hard short incident.
A continually overlooked series of events even in Hard short makes discussion almost impossible.
While some Preach instant explosion, Repeated Deliberate Hard short test - Video Documented - almost always take many many seconds to even produce a venting situation. Often this is followed by several seconds of low gas exhaust before full catastrophic failure comes into play.
The only Instant catastrophic failure I have witnessed so far in all of my video reviews of testing(forced Failure) is during actual Battery destruction. Events like a Knife into a Soft side lithium battery or a Nail driven into the casing of a cylindrical Shell protected battery. In these cases it is Clearly Internal (damage) Failure creating an instant event.
Just stating what is obvious and available for reference.
Ultrafire:
a Bit of Visual Battery Schooling:
Right, no, I get that. "Instant" explosions don't actually happen instantaneously. I guess I'm wondering, if you had a hard short inside of a mod, would you notice the same heating of the mod that you would if you were pulling too many amps more gradually?
What I'm thinking is, hard short, that takes say 60 seconds to get to the pressure to pop the mod, might just seem like an unresponsive mod, unless it's getting really hot.
That's the part I don't get, everything I've seen has been a somewhat slow reaction, though I read mooch's blog about fast thermal runaway. If there was any indication of a serious problem, i.e. heat or gasses, why would anyone still be holding the mod?battery gas coming out the vents would instantly inspire me to put distance between myself and the mod
Count me as one of those who did not.Everyone here Knows This. But I'll just post it for Anyone Reading this thread who might Not.
Yeah, if you guys have been saying it, it went WAY over my head.That is what We have been saying![]()
Au contraire, mon ami.This thread can no longer be recovered back to useful.
Count me as one of those who did not.
That was extremely useful and now I almost understand.
Well, except for that one dude who said he could argue about it all night long.
So yeah, still unclear but your picture made a hell of a lot of sense.
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BUT, on another note, I was at a friends house one night, hanging outside and heard a loud boom, sounded like a 12ga shotgun had gone off! We went over to the Jeep we had just parked 30min? earlier and upon opening the hood we saw the battery had exploded! Never seen or heard of it before, never seen it since! Put a new battery in it and all was good. No shorts, nothing wrong with anything. New battery and we drove it for a few more years. Never did, and still doesn't make sense to me.
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Deductive Reasoning and Critical Thinking would Dictate that the Fact that the Mod was Not Performing Properly before this Incident can Not be Summarily Discounted.
But some people would rather Throw Out things that Don't Fit well into their Theories or Can't be Explained based on what they have been Told.