Yet another explosion
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We pay taxes so the consumer product safety comission can give warnings about things like this. They were right where they needed to be when hover boards were causing problems. They are silent on this loose battery issue because they want people to get hurt so they can ban vaping to protect their taxes. Apparently they are part of the swamp that needs to be drained.
that looks like 4 batteries,, i dont think there are any 4 batmods on the open market..
imho it was too many batteries not being respected imho.
somebody spent their 15 minutes of fame showing the world how stupid they are .
and the headline is misleading,, it blames the ecig not the user.......hhhmmm 'false headline'.....another 'gem' from the media
I said it looked to me like an RX 2/3 so that would explain 5 batteries. 3 in it and 2 floating around in his pocket with the extra battery cover. Good combination for mishaps I would say but that is just my opinion............
Hope it was not his money pocket. Defacing government currency is a crime! 
Once again reminds me of a Christmas song, "Chessnuts roasted by an open fire."
Once again reminds me of a Christmas song, "Chessnuts roasted by an open fire."
mishandling loose batteries is a sign of stupid,, you cant cure stupid
I respectfully disagree. Mishandling batteries is a sign of being uninformed, not a sign of being stupid. Most people toss batteries around and think nothing of it, because they have never been educated as to how much energy is stored in some batteries. I think this is changing, but I think the average person just doesn't know.
The CPSC is effective when they want to be. So far they are dead silent, inexcusable. I got religion on how to treat these batteries after watching some youtube videos of deliberate venting.mishandling loose batteries is a sign of stupid,, you cant cure stupid
They don't all get real violent. They probably all get hot enough to start fires. May be it depends on the design of the battery or may be there is variability and luck involved. If the gas builds up inside a mod faster than it can escape there is going to be some flying metal. Magnatized battery doors are good for venting. Another approach is to have some weak parts that will give way before the body of the mod breaks apart.
I wonder if a test program would find some makes or models of 18650's self destruct more peacefullly than others or may be there is no way to predict that.
I recommend pbusardo's video of his visit to a factory that makes li batteries and is partly owned by Aspire. I wish these guys were available to answer questions about battery safety.
i also respectfully disagree with you on education of battery safety....because the media has made such a big deal of it and because anytime you operate something with any kind of power source you need to educate yourself on its limits and risks.
at some point the umbilical cord excuse has to be cut... people dont get to handle items outside of their willingness to get educated and then scream 'i'm hurt' after they get hurt.
how long did it take them to figure out not to engage a cig lighter for too long or their fingers will get scorched? or that too much gas pedal on the car creates more braking pedal to stop. people shouldn't operate stuff they are not smart enough to research/get an education for........if they choose too,, well,, thats just stupid being stupid--imho.
the guy never should have had that set up (1 or 2 or 3 batteries and a spare?,looks like 4 batteries in the pic),, he needs to stick with the gas station equipment/closed systems.
i figure if you count all of the batteries everyone on this site owns,, it would 100,000 or more easy......and yet we (or at least most of us) haven't blown up our ecigs.
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Like I said, it's getting better.
The examples you stated are apples and oranges. Lighters burn each time you hold the button down too long; the relationship between speed and breaking is the same every time you drive. Battery venting is a very rare occurrence and is something that has not happened to most people. It's something that very few people have direct experience with.
The examples you stated are apples and oranges. Lighters burn each time you hold the button down too long; the relationship between speed and breaking is the same every time you drive. Battery venting is a very rare occurrence and is something that has not happened to most people. It's something that very few people have direct experience with.
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I can't imagine a battery venting being explosive, unless it occurs in a non-vented mod, particularly those solid brass mechanicals.
Consumer batteries are consumer batteries because they are better behaved than the li batteries used in mods. The batteries we use are intneded to be incorporated in other products, not purchased by end users. One of the reasons is because they can cause problems if mis handled. I bought my first 18650's from a local vape shop. There was no packaging and no cautions or warnings of any kind by the people in the shop. If that can happen that's when a government agency might play a role. I'm not against that and I'm not calling people stupid because they don't know about an unobvious hazard that not mentioned on packaging or by the seller.
Better to Remain Silent and Be Thought a Fool than to Speak and Remove All Doubt
I find it funny how the most judgmental types quick to condem with only the most superficial knowledge are just to stunted intellectually to even realize how limited their own knowledge really is.
Anyway, maybe the guy was carrying loose spares, but it had nothing to do with what happened here, as dumb as that move was.
My guess, and by guess I mean I'm 99% certain that this was yet another power mosfet failure. Mosfets are what the current flows through, depending on which one fails you get battery voltage to the coils or a dead short. Buck and boost mosfets respectively.
On a mosfet failure, which can happen while in use or some random amount of time after use, it doesn't matter if the device is locked, turned off, if batteries are in the device battery voltage goes to the coil, period. In the case of a boost mosfet failing, again it doesn't matter if the device is on/off, locked, or even if an atty is screwed on because it creates a dead short to ground.
Basically when a mosfet fails you can pretty much throw out every protection offered by the PMIC. This is just the way buck/boost circuits work and why you'll just about always find a fuse when the source of power could cause damage. About the only time you won't see fusing is where the power source can't deliver enough power to cause any further harm. This is introductory circuit design 101, about as basic as it gets.
On 18650s run in series or devices using 3S Lipos, we're talking 7.2V to 12V nominal and about 200A of available fault current. Its a lot of power. Omitting fuses given these power sources is unforgivably bad design, it may (depending on country) even be in violation of established standards for consumer products. Given that most sub-ohm builds and TC builds average well below 0.3 ohms and that a buck mosfet fail dumps battery voltage to the coil, the math is simple.
One guy made a crack about how most ECFers have several ticking time bombs sitting on their shelves like the idea is preposterous, but he was absolutely right even if he lacked the breadth of knowledge to realize it.
Yeah, if you bought a high power YiHi, Sigelei, Asmodus, Smok, Eleaf, P4U to name a few, if you push it to anywhere near its limits, a failed mosfet is among the most common failure modes and what happened to that guy can just as easily happen to you.
So if you like to sub-ohm or do high power TC builds, and like buying Chinese electronics, don't be surprised when it happens to you, and don't be surprised if the other jackals here viciously turn on you and blame you for it either.
As it stands, Evolv is the only game in town that I can definitively say does anything about it. They've got a 25A fuse where power reaches the board. If it blows, you can simply replace the fuse and if it was just a mosfet that went bad the board is easily reparable as opposed to a melted mess and potentially a thermal runaway blowing up in your face.
I've been saying it all along, but the way this community reacts to product failures is an utter disgrace and going to hurt vaping. Viciously attacking victims in attempts to squash the notion there might be something wrong with a product rather than trying to figure out what went wrong and compel companies to fix it does nothing to correct the situation. It makes things worse, much worse.
Be prepared for a lot more negative press as 200W mods get to about a year or two old and a lot of those mosfets start wearing out on unfused boards.
To summarize. No fuse protection with 3x the old voltages and resistances as low as 0.1 ohms and mosfets prone to failure dumping battery voltage to the coils and most of you blame the victim....
...common sense definitely isn't.
I find it funny how the most judgmental types quick to condem with only the most superficial knowledge are just to stunted intellectually to even realize how limited their own knowledge really is.
Anyway, maybe the guy was carrying loose spares, but it had nothing to do with what happened here, as dumb as that move was.
My guess, and by guess I mean I'm 99% certain that this was yet another power mosfet failure. Mosfets are what the current flows through, depending on which one fails you get battery voltage to the coils or a dead short. Buck and boost mosfets respectively.
On a mosfet failure, which can happen while in use or some random amount of time after use, it doesn't matter if the device is locked, turned off, if batteries are in the device battery voltage goes to the coil, period. In the case of a boost mosfet failing, again it doesn't matter if the device is on/off, locked, or even if an atty is screwed on because it creates a dead short to ground.
Basically when a mosfet fails you can pretty much throw out every protection offered by the PMIC. This is just the way buck/boost circuits work and why you'll just about always find a fuse when the source of power could cause damage. About the only time you won't see fusing is where the power source can't deliver enough power to cause any further harm. This is introductory circuit design 101, about as basic as it gets.
On 18650s run in series or devices using 3S Lipos, we're talking 7.2V to 12V nominal and about 200A of available fault current. Its a lot of power. Omitting fuses given these power sources is unforgivably bad design, it may (depending on country) even be in violation of established standards for consumer products. Given that most sub-ohm builds and TC builds average well below 0.3 ohms and that a buck mosfet fail dumps battery voltage to the coil, the math is simple.
One guy made a crack about how most ECFers have several ticking time bombs sitting on their shelves like the idea is preposterous, but he was absolutely right even if he lacked the breadth of knowledge to realize it.
Yeah, if you bought a high power YiHi, Sigelei, Asmodus, Smok, Eleaf, P4U to name a few, if you push it to anywhere near its limits, a failed mosfet is among the most common failure modes and what happened to that guy can just as easily happen to you.
So if you like to sub-ohm or do high power TC builds, and like buying Chinese electronics, don't be surprised when it happens to you, and don't be surprised if the other jackals here viciously turn on you and blame you for it either.
As it stands, Evolv is the only game in town that I can definitively say does anything about it. They've got a 25A fuse where power reaches the board. If it blows, you can simply replace the fuse and if it was just a mosfet that went bad the board is easily reparable as opposed to a melted mess and potentially a thermal runaway blowing up in your face.
I've been saying it all along, but the way this community reacts to product failures is an utter disgrace and going to hurt vaping. Viciously attacking victims in attempts to squash the notion there might be something wrong with a product rather than trying to figure out what went wrong and compel companies to fix it does nothing to correct the situation. It makes things worse, much worse.
Be prepared for a lot more negative press as 200W mods get to about a year or two old and a lot of those mosfets start wearing out on unfused boards.
To summarize. No fuse protection with 3x the old voltages and resistances as low as 0.1 ohms and mosfets prone to failure dumping battery voltage to the coils and most of you blame the victim....
...common sense definitely isn't.
Stop the guessing. You're only guessing because you didn't read through the whole thread. The link has already been provided E-cigarette battery explodes in man’s pants at Grand Central Terminal wine store: source and it states,
"MIDTOWN, Manhattan — An e-cigarette battery exploded after it rubbed against loose coins in a man’s pocket Wednesday morning, a source said."
The Associated Press contributed to this report.
User error. The end.
"MIDTOWN, Manhattan — An e-cigarette battery exploded after it rubbed against loose coins in a man’s pocket Wednesday morning, a source said."
The Associated Press contributed to this report.
User error. The end.
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