Help me with my battery, yo

[zmauls]

Good evening vapers!

I went to my B&M today to ask a few questions... Bought my first dripper as well, an IGO-W. I like it; the flavor is amazing, but I feel like it could hit harder... Literally double fisting it with my RSST right now (both atop mechs, obviously).

These fun facts, however, are besides the point.

The question I asked was what ohmage my first build was set to, as I didn't do it myself.

I was informed that it was set at 0.4ohms. Reasonable enough, right?

But here's the thing... I almost constantly used my 18350's with this build, yet here I am now, typing this with all of my fingers still fully in tact. Dead, I am not. Yet, because of this site, I am terrified to use my 18350's with my current build, also at 0.4ohms.

What could happen? Seriously. Really, it comes down to aesthetics, but I like the look of my Magneto and my Natural both so much more in 18350 mode.

Come on, people.

 

[WarHawk-AVG]

Baditude will be along shortly

I don't think 18350's are anywhere capable of pushing the required current for .4Ω load!!!!

 

[Raycecar]

It could kill your battery, your battery could blow up in your face, and even if it does work, 18350 at .4 ohms would last you 5 minutes.
Just don't use your 18350 at .4, it's not safe at all. It can't handle those amps.

To be safe, I only use my 18350's at 1.0 ohms and up. Never below 1 ohm.

BTW, what brand is it? AW? Efest? Trustfire?

 

[Ryedan]

Don't do it. 0.4 ohms draws 9.5 amps at 3.8 volts. Your voltage drop with a fresh battery will likely give you around 3.8. There is no 18350 IMR battery I know of that puts out more than about 6.4A. You're looking at heat buildup and if you get the batt too hot it will vent.

 

[Ryedan]

Plus, I like to have a healthy margin of extra safe current available for shorts.

 

[Steam Turbine]

A 0.4 ohm coil will draw about 10 amps out of your battery. There is absolutely no 18350 that can safely allow that much current.

You are literally playing with fire.

If you want to keep using that setup, drop a good IMR high drain 18650 in there pronto!!!

Yeah... I know it will not look as nice! can't have it all.

 

[Rickajho]

What Ryedan said. We only need you to tell us what 18350 battery you have stuck in there to make the explanation even worse.

 

[DKP#]

4.2 Volts / 0.4 ohms = 10.5 Amps
This is reasonable for a battery rated 20 Amps

Look up the specs on your battery and keep Amps less than the battery max. Half would be a good idea since your going to be holding it up to your face.

If you measure the voltage of the battery when you fire it you'll find that the voltage drops significantly when you exceed the current capacity. This "lost" voltage is being "dropped" by the battery internally and causes it to consume power and generate heat.
This heat is what the current rating is set to limit.

Since it's being fired intermittently for short duration, It's probably fine. You can go stand under a tall tree during an electrical storm and probably be fine too. Don't just consider the odds of failure, consider the consequences of that failure.

I think a good AW 18350 is rated 6A (not sure)
4.2V/3A = 1.4 ohms minimum

 

[Paul.K]

It's pretty disturbing that the shop that built the .4 ohm coil didn't explain all this. OP did they meter the coil or just told you from their experience that it was .4 ohms?

 

[Steam Turbine]

It's pretty disturbing that the shop that built the .4 ohm coil didn't explain all this. OP did they meter the coil or just told you from their experience that it was .4 ohms?

Disturbing yes... But unfortunately I hear more and more stories about shops setting up their customers with this kind of build. It's going to be bad for us and the industry when PV's are going to start blowing up left and right because of irresponsible shopkeepers.

 

[Sickkboy]

With my dual coils 0.5 ohm, I still a bit scare to use panny 18650pd, I calculate it at 4.2v came out 8.4 amp drawn from battery or if I do 3.7v it came out 7.4 amp drawn, I know it's not a problem to use because this battery can handle 10 amp, but I just don't feel comfortable pushing it. So I just use my old 0.8 ohm coils, better safe than sorry. My face got blown up doesn't worth it IMHO

 

[Ryedan]

With my dual coils 0.5 ohm, I still a bit scare to use panny 18650pd, I calculate it at 4.2v came out 8.4 amp drawn from battery or if I do 3.7v it came out 7.4 amp drawn, I know it's not a problem to use because this battery can handle 10 amp, but I just don't feel comfortable pushing it. So I just use my old 0.8 ohm coils, better safe than sorry. My face got blown up doesn't worth it IMHO

I hear ya Sickkboy. I use MNKE 20A and Sony 30A batts at around 0.6 ohms which is about 6.5A on a fresh battery. I know I'm wasting the extra amps these batteries are capable of and not taking advantage of the extra mAh hybrids have, but they give me lots of headroom and IMO they are the safest batteries around. The Hybrids are great but I've never seen a video of what happens to one when it's hard shorted.

That's the worst case scenario. I really don't care if I have to change my battery more often, but not having to worry about them burning when shorted makes me happy. And I like happy

 

[Baditude]

Well, I see that the plague is spreading. First from multiple vape shops in southern California, now in New Jersey. If this coil was set up in the shop at 0.4 ohm and the sales tech knew you were going to use this coil with an 18350 battery, then the ecig community needs to step up and stop these dangerous practices. This is totally irresponsible.

I don't know how to do it. Send threatening letters to the offenders and promise a boycott of their business if they don't stop? Any ideas?

 

[Baditude]

What could happen? Seriously. Really

This could happen to your face.



This could happen in your battery.


This could happen to your mod.



This could happen to your home.

 

[Sickkboy]

I see it the way that these kind of shop lack of responsibility, maybe they just tried to make customers impressed by how fantastic the vape they get so they would come back to buy from them again, but not telling them the pros and cons of this kind of built, also the potential to damage if use it wrong way is unacceptable

 

[Ryedan]

Well, I see that the plague is spreading. First from multiple vape shops in southern California, now in New Jersey. If this coil was set up in the shop at 0.4 ohm and the sales tech knew you were going to use this coil with an 18350 battery, then the ecig community needs to step up and stop these dangerous practices. This is totally irresponsible.

I don't know how to do it. Send threatening letters to the offenders and promise a boycott of their business if they don't stop? Any ideas?

I see it the way that these kind of shop lack of responsibility, maybe they just tried to make customers impressed by how fantastic the vape they get so they would come back to buy from them again, but not telling them the pros and cons of this kind of built, also the potential to damage if use it wrong way is unacceptable

It's a money grab for sure IMO. They think they can provide customers with the best vape experience and those customers are going to buy from them because of that. But they are not thinking of the possible consequences and the future of their businesses. Maybe they don't understand the tech. I know if I started a business I would figure things out but I, like you guys, have a mind and I care. Maybe they're missing one of those items.

Ya, what to do about it. These guys aren't on ECF and the majority of vapers aren't either. FB is a big marketing tool and there are a lot of new B & M shops opening up all the time.

I'm thinking the options are education, consumer protection regulation and law suits after accidents occur. I like education. I thought consumer protection regulations would already cover PVs, but obviously that's not the case. Maybe there need to be a few more accidents before more attention is paid to vaping and they are enforced. I know law suits will motivate people to be more responsible for their own good.

So basically, I've got nothing. And I'm taking this thread way OT. Going to take my dog for a walk and talk it over with her. Maybe she'll give me some good ideas

 

[Scarey]

Seriously? Another thread like this? I've been following a thread where a shop worker gave a person with an 18490 a coil that was probably, based on my builds, about 0.4Ω. This is even worse... Seriously, on an 18350, don't go below 1Ω...

 

[Ryedan]

Seriously? Another thread like this? I've been following a thread where a shop worker gave a person with an 18490 a coil that was probably, based on my builds, about 0.4Ω. This is even worse... Seriously, on an 18350, don't go below 1Ω...

Yup, it's becoming a trend

 

[Sickkboy]

I can see accidents coming up in my country, lots of vaper here don't want to educate themselves, just fill and go is their way to vape. Some that messing around with RBA and RDA don't even have a clue about battery they use (I see a lot of this kind in Thai forum lately), and guys that think they know and tell others even worst. For instance, protected trustfire, protected panny in a mech with super low ohm and they think that's fine. Seriously, competing how low they can go, chasing the cloud is fine as long as they know how to treat their PV the right way. Blowing their face off is not my problem, but government ban e-cig because of this kind of behaviour is not awesome. Sorry for the rant

 

[Scarey]

We really need a battery safety sticky...