Coils caught on fire!

[Altair49]

Hi all

So I bought a Lost Vape 75C BF and the nudge rad squonk kit. Had an initial install that was ok, but I decided to throw away the old coils and rebuild to see if the hot burnt taste was a subpar build issue.

I found a couple of pre built coils that cane with a tank, can’t remember what tank right now, after some effort I managed to install them in the awkward nudge post, after pulsing for a few minutes I noticed one of the coils would show a spark on the side but not fire, worked it with the tweezers and it would light up but not optimally. Pulsed and the whole rad caught fire. Screemed like a Japanese school girl and threw the whole thing away from me.

Two minutes later, managed enough courage to pick up the mod and disconnect the batteries, attached are pictures of the awful build.

So what did I do wrong? Is it safe to retry with this rda and battery? I don’t want to throw them away, but you would like to keep my teeth intact as well.

 

[Altair49]

Oh I should say that I have built a few times in the past with no issues, I don’t count myself as an experienced builder as well simply follow YouTube videos.

 

[Tonee N]

Could have shorted out, from the pics there looks like there isn't much room to play with in that deck.
Have you tried another set of coils?

Sent from my SAMSUNG-SM-G891A using Tapatalk

 

[Altair49]

Could have shorted out, from the pics there looks like there isn't much room to play with in that deck.
Have you tried another set of coils?

Sent from my SAMSUNG-SM-G891A using Tapatalk

Well no i haven’t tried other coils yet, though I would like to. My question is is it safe? Have the batteries been damaged in any way due to the short if that’s what it was?

 

[Bunnykiller]

the only manners in which a coil(s) will catch fire and flame is if there is something burnable on/in the coils... such as oil from the wire manufacturing process, Ejuice, wick... but it looks like there was no wick... when pulsing coils to prep them, you use short consecutive shots to heat up the coils to a dull orange glow... no need to go to yellow or brighter ( all that does is degrade the wire)... ideally, the coils should heat up from the center and continue to the outer edges, if there are loops shorting out on each other there will be dark coils inbetween others or there will be hotspots ( bright glowing pinpoints spots)... pulse the power button, try not to hold it down for several seconds....

 

[Bunnykiller]

batteries are ok... you just overheated the coils...

 

[Altair49]

Thank you, that makes sense.

So about pulsing, my dna shuts off if I press five times in a row. How would I pulse?

 

[AzPlumber]

E-juice is flammable if you get it hot enough. Without a wick or airflow it will get hot enough.

 

[Eskie]

Thank you, that makes sense.

So about pulsing, my dna shuts off if I press five times in a row. How would I pulse?

It will lock with five fast clicks. If you leave a bit of time between pushing the fire button it won't lock you out. Still confused on what exactly caught on fire.

 

[Altair49]

Aghhh. Rebuilt with .15 dual coils. Mod reads ohms at .9 then it went down to .8

Haven’t tried to run this build, don’t feel comfortable with my lack of knowledge.

Should I try this build or rebuild?

 

[Altair49]

Is a .09 build too low to be safe? I am not concerned about reducing battery life, but of the device catching fire again or the battery exploding. I know this is not a mechanical mod, but is there any danger here?

I’m probably being overly cautious, but what with reports of exploding phones I can only imagine a simple device like this with such a low resistance, partly built by an amateur, and under constant stress is a time bomb at this point.

 

[Bunnykiller]

when you use dual coils, the ohms of a single coils rating is divided in half... for example... 2 coils at 2 ohms in parallel = 1 ohm.
therefore 2 coils at .15 ohms should = .075 (.08) ohms, which in my opinion is way too low for a mech mod and probably too low for a regulated ( may not even turn on)... do some research and refresh your memory on Ohms Law...

 

[Altair49]

Sorry it’s .3 ohm single. So should be .15 dual

 

[Altair49]

Any one want to get even more confused? It’s constantly going down. Now at .76.

Note that the haven’t even fired the mod yet, built .3 coils in dual to get .15, got .9, kept going down without touching it.

Could It be a malfunctioning chip?

 

[Topwater Elvis]

It is very important to type the proper value. .076Ω not .76Ω, .09Ω not .9Ω

Why are you wanting to go so low Ω to begin with.

When you use premade coils you get what you get, if you wrap your own you get what you want.

Might check the insulator & all 510 connection points, traps screws etc...

 

[BoogaWu]

Coils might be going down in resistance due to touching the deck, it's awful close in those pics. Might try smaller i.d. ones.

 

[Letitia]

What wire is your coils? Agree your diameter is making for a tight fit. Resistance will also fluctuate if your leads aren't secured tight enough.

 

[Gramdogg]

They look like fused claptons so I'm guessing you just burned off the juice that it had inside it. They act like mesh and absorb some juice themself. I get a few small fire with some juices with just a single round wire build so I'd imagine yours looked like a small camp fire. The flash point of some juice is much lower and even not able to be shipped to some places because it is considered hazardous to do so. Always start pulses low... on that build I'd think 20-30w should be enough. I know people like blue rainbow looking coils but pulsing a new coil super hot to do so is just ignorant IMO

 

[stols001]

I would suggest, if feeling nervous about your skills/mod, perhaps some judicious practice with a single build deck? I'm not trying to be condescending, but part of your problem right now is your resistances are SO low, that you are placing yourself at risk for a "flaming" wick, merely due to the wattage/battery that may be needed to push energy through your coils.

Build in some "safety" for yourself by having a build deck that's bigger, and you can more easily see what is going on. I suppose it's possible your mod is reading incorrectly, but I think you aren't exactly clear what resistance you are ending up with either. While it is unlikely a "flame out" like that damaged your mod, you may be overstressing its capacities, and your batteries, by building so low. Get it up and running correctly with something simpler, then start generating repeatable results that aren't "my wick is on fire."

Especially if you are nervous, doing that will only build your skills and your confidence in yourself, your equipment, and both.

No need to run before walking when it comes to build decks. Really. I've gotten quite competent with mine but I did NOT begin that way. I promise. I really, really sucked at everything coil-related and now I can buy something new, build wick and vape it, while feeling quite confident in what *I* am doing, which allows me to evaluate whether my problems are equipment related or not.

Usually, they aren't. I've made my share of building errors, and I know how complicated it can be.

Best of luck. Vapers don't let vapers combust. Slow down.

Anna

 

[Gramdogg]

What mod is it? Oh nvm lol. DNA is verrry accurate so it is your build thats making it jump around. Tighten screws like others said.. if you have builds to close to metal I always take paper to be sure it's not touching. Also DNA has a fuse so if you short it and protection don't work it will just blow the fuse not your battery.