I'm not quite sure what just happened. I built a work .32 ohm quad-coil on an IGO-W. Using a Sony US18650VTC3 with 30A discharge, i test fired it several times no problem. Used cotton to wick it and juiced it up. I pressed the fire button and my mech immediately got crazy hot. I quickly unscrewed the button and pulled the battery out. After I let it cool down I tested the voltage and it showed 2.23 volts and steadily dropped. My battery was freshly charged before the test fire, I checked for a short on the IGO-W but it still read a steady .32 ohm. What the heck happened?????
What happens if you overdischarge a battery?
- Thread starter concordeflight
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Be more careful!
Is there any particular reason you need 55 watts?
If that's truly necessary...get FAR AWAY from Ion batteries please. Learn how, and buy/make a quality pass through. There's a big difference between replacing a fuse or circuit breaker and trying to replace your face after an Ion cell explosion.
Those little batteries can be a BOMB.
Is there any particular reason you need 55 watts?
If that's truly necessary...get FAR AWAY from Ion batteries please. Learn how, and buy/make a quality pass through. There's a big difference between replacing a fuse or circuit breaker and trying to replace your face after an Ion cell explosion.
Those little batteries can be a BOMB.
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What you just described about the battery is a direct short, it's toast, I don't know what kind of meter you have but it sounds like it's not working right.
Yes, I'd have serious doubts about that meter, I'd also like to know how many times that battery has been cycled/deepcycled and loaded to that level?
Dispose of that battery, it's done! Beg, steal or borrow another meter, of known good condition, check, recheck, then check the coil again. Check for a short in the mod itself, the Siegeli #20 comes straight to mind!
There's a lot of reasons I don't recommend this practice for new members, you are learning some of them now!
Dispose of that battery, it's done! Beg, steal or borrow another meter, of known good condition, check, recheck, then check the coil again. Check for a short in the mod itself, the Siegeli #20 comes straight to mind!
There's a lot of reasons I don't recommend this practice for new members, you are learning some of them now!
Seriously, consider moving to a new platform (power source) if you truly need that many watts for your projects.
LiIon does get better every year, but it still has a ways to go before it makes a SAFE tinkering platform.
1. Consider moving to a high voltage setup instead, and building setups that draw fewer amps. These days you can find single 5v NIMH cells (no battery stacking required, but needs a special charger) and wrap higher ohm coils to achieve the same effect. These can explode too! So don't push them with really low resistance stuff either...just showing there are some ways to get another watt or two and be a little safer.
2. Find or build a pass through that plugs into your wall. Use proper transformers and regulators that can handle the amperage you're asking for. Make sure it has a fuse or breaker in it. So what, it has a wire, box, and needs to be plugged in to work...but an 'oops' moment would be as simple as replacing a fuse or pushing a breaker switch.
At any rate... 0.3 Ohms is really pushing these batteries beyond what they were intended to do. Even if they are rated fairly high, they had 'industrial purposes' in mind...they weren't meant to be within inches of a human face during such operation (more like FEET away, in special protective boxes).
LiIon does get better every year, but it still has a ways to go before it makes a SAFE tinkering platform.
1. Consider moving to a high voltage setup instead, and building setups that draw fewer amps. These days you can find single 5v NIMH cells (no battery stacking required, but needs a special charger) and wrap higher ohm coils to achieve the same effect. These can explode too! So don't push them with really low resistance stuff either...just showing there are some ways to get another watt or two and be a little safer.
2. Find or build a pass through that plugs into your wall. Use proper transformers and regulators that can handle the amperage you're asking for. Make sure it has a fuse or breaker in it. So what, it has a wire, box, and needs to be plugged in to work...but an 'oops' moment would be as simple as replacing a fuse or pushing a breaker switch.
At any rate... 0.3 Ohms is really pushing these batteries beyond what they were intended to do. Even if they are rated fairly high, they had 'industrial purposes' in mind...they weren't meant to be within inches of a human face during such operation (more like FEET away, in special protective boxes).
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P.S.
If you're new at this...and must have a sub-ohm rig using a 3.7v battery...
Consider a Kick 2 and never wrapping below .6 ohms. Shooting for .7 - .8 would give you some head room...most run of the mill multi-meters have cheap leads and don't always measure on the money (usually the quality/condition of the leads/probes are more a problem than the meter itself). If the Kick can't fire it...it's most likely not safe for continued use on these type batteries.
You get some extra protection that way...for yourself, and your batteries.
If you're new at this...and must have a sub-ohm rig using a 3.7v battery...
Consider a Kick 2 and never wrapping below .6 ohms. Shooting for .7 - .8 would give you some head room...most run of the mill multi-meters have cheap leads and don't always measure on the money (usually the quality/condition of the leads/probes are more a problem than the meter itself). If the Kick can't fire it...it's most likely not safe for continued use on these type batteries.
You get some extra protection that way...for yourself, and your batteries.
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Go below the min voltage and it might not charge again. Don't remember what the bottom is but I don't let them get below 3.4 volts.
I'm glad you were not hurt, that can be dangerous! IMO the battery hard shorted. It's strange this happened after the successful test fire with no wick, but it wouldn't be the first time a short appeared suddenly, or was intermittent.
First the basics. As has already been pointed out, check the meter. Touch the probes together and it should read 0.0 ohms. If it reads 0.3 ohms you might be able to zero it out. If you can't, you need to subtract that number from the readings you take. Was the battery reasonably new and in good shape with no tears in the outer plastic sheathing? Did you buy it from a good supplier known to not sell counterfeits? Are you putting in the battery positive end first against the 510 connector?
Let's move on. IMO it was not the coils.
Have a look at the mod. Unfortunately you didn't say what mod you were using. If it has a bottom button, I doubt that is an issue. Check the continuity between the 510 connection center pin and the body of the mod from the top. There's a plastic insulator between that pin and the body which could be bad. If the mod has a floating center pin, also try testing with the pin pushed up and with it pushed down. There could also be a short caused by a small piece of metal in the assembly. Find a short there, you've found the problem. If your mod has a top button and you haven't found a problem yet, have a look at that too.
The IGO also has a center post, a plastic insulator around that and the body. IMO it's unlikely there is a problem there, but if you find nothing wrong with the mod, you can look at this the same way with the meter with no coils in it. Push sideways on the top end of the center post. It should not move at all and meter readings should not change and always show no continuity.
And like has already been said, don't use the mod or the IGO again until you find the problem for sure and fix it properly.
Hope this helps.
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Lithium 18650 explosion - YouTube
It should also be noted that flames from Li-ion battery explosions often cannot be extinguished with water. I personally find sub-ohming below 0.8 to be just dumb, especially if you haven't done your homework, don't have adequate health insurance or care not to go to an ICU for 3rd degree burns to your face or worse.
I pull ridiculous clouds off of 1.0-1.2 ohm rebuildables using unthreaded micro/nano-coils on mechanical devices without running the risk of over-discharging a battery. Not only should you dispose of that battery, but I would get rid of all of them and buy AW IMR or MNKE batteries for their safer chemistry. Batteries are not something to skimp on either. I always recommend people buy the highest quality batteries from reputable dealers and dissuade serious sub-ohming, especially for noobs.
If you want to learn how to pull insane plumes of vapor with intense flavor there are plenty of resources available but chasing clouds by using serious sub ohming set-ups is sketch.
Sorry if I'm coming off harsh but these days e-cigs seem to be the topic of much debate globally and negative publicity from somebody blowing their face off is an efficient way to get them banned everywhere. You're probably safer switching back to analogues in my opinion, lol.
It should also be noted that flames from Li-ion battery explosions often cannot be extinguished with water. I personally find sub-ohming below 0.8 to be just dumb, especially if you haven't done your homework, don't have adequate health insurance or care not to go to an ICU for 3rd degree burns to your face or worse.
I pull ridiculous clouds off of 1.0-1.2 ohm rebuildables using unthreaded micro/nano-coils on mechanical devices without running the risk of over-discharging a battery. Not only should you dispose of that battery, but I would get rid of all of them and buy AW IMR or MNKE batteries for their safer chemistry. Batteries are not something to skimp on either. I always recommend people buy the highest quality batteries from reputable dealers and dissuade serious sub-ohming, especially for noobs.
If you want to learn how to pull insane plumes of vapor with intense flavor there are plenty of resources available but chasing clouds by using serious sub ohming set-ups is sketch.
Sorry if I'm coming off harsh but these days e-cigs seem to be the topic of much debate globally and negative publicity from somebody blowing their face off is an efficient way to get them banned everywhere. You're probably safer switching back to analogues in my opinion, lol.
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