2x Panasonic batteries got super hot on me. (NCR18650PD)

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Lethal-Dose

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Ok so I ordered these from fasttech (Panasonic High Drain NCR18650PD Hybrid 2900mAh Flat Top) (http://www.fasttech.com/products/0/10001980/1233700-panasonic-ncr18650pd-18650-3-6v-2900mah)
I charged them fully in my nitecore i2 until the lights stopped flashing.
And yesterday I put one in my smok Natural, took a first vape, second vape all fine. After my third vape the Natural got SUPER HOT (I mean like putting your hand over a stove hot) so I took the battery out and it was like I said before SUPER hot.
So im thinking and I said lets try the other one, same exact thing happened except this one was way hotter.

Am I doing or did something wrong? Please tell me what I did or what happened

After that I sat down and my computer and right on the spot ordered some aw imr 18650 from RTDVaper.
AW IMR 18650 2000 mAh
 
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Baditude

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You left out the most important piece of information. The question everyone will ask is what juice attachment are you using, and most important what is the ohm rating? :confused:

If you are using sub ohm coils in an RBA/RDA and the coil is pulling more amps than the battery has then the battery will get hot, and if you continue to use it it will go into thermal runaway.

Those Panasonics are one of the best batteries on the market today. The AW/s will be no better. They both have a 10 amp limit.

The other possibility is you have a short in your atomizer or mod.
 
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Lethal-Dose

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I got the mod from a guy on facebook, so it was used. And yes I looked at the ohms of the coil on both my svd and vamo and mvp v2.
and no I don't have a multi meter. :(
After that incident and after the mod cooled down I just put in a normal efest 18350 and it was working fine.
Can it be maybe my charger is bad and it over charged them, cause when I took them of the charger when they were fully charged, both batteries were hot.
 

devauto

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It sounds like a short in your device to me. It might be a good idea to use a fuse in your mechanical mod to prevent this possibility.

I agree, it does sound like a short. Fuses are definitely in order with mechs, at least from everything I have been reading! I wouldn't want my mod to blow up, or catch fire ... one of the many reasons I haven't picked up a mechanical yet!
 

LDS714

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How can I test the mod for a short?

If you have an ohm meter, check from the center pin of the 510 connector to the threads. It should show open (infinite resistance) with the firing button pressed. Since it works fine with the 18350 batteries, I'd be surprised if the mod were the problem.
 

440BB

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I'm not a testing expert, but most of the shorts I've run into have to do with the center pin (positive) on top. There's a grommet, or insulator, that keeps that pin from contacting the body (negative). If that insulator is torn, or offers too much side-to-side play, a short can occur. As you live in the chicago area, it might be a good idea to stop in a local vape shop and see if they can check it out for you.

As for fuses, here's an example source - Vape | Safe | 2 | Reusable | E-Cig | Battery | Safety | Fuse | CherryVape.com

The disposable or lite one both would serve your purpose. A local vape shop may also be able to help you with this.
 

D4rk50ul

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You left out the most important piece of information. The question everyone will ask is what juice attachment are you using, and most important what is the ohm rating? :confused:

If you are using sub ohm coils in an RBA/RDA and the coil is pulling more amps than the battery has then the battery will get hot, and if you continue to use it it will go into thermal runaway.

Those Panasonics are one of the best batteries on the market today. The AW/s will be no better. They both have a 10 amp limit.

The other possibility is you have a short in your atomizer or mod.

AW IMR 18650 1600mah have a much higher output rating than the 2000mah variants. They can handle 24 amps IIRC vs the 10ish the other batteries are rated at. Batteries won't just automatically go into thermal runaway but it sounds like you have a short somewhere that you aren't noticing.

I wouldn't trust a rando company for batteries, anyone can claim something is a Panasonic. Buy from somewhere reputable like orbtronic.

If you want solid information check out some of the flashlight forums.
 

Baditude

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And where and what kind of fuse should I get and where from?

RTD is an excellent online vendor that specializes in mod batteries and chargers. You can get the re-usable here. Vape Safe Mod Fuse

However, if your mod has a short in it, it will continue to trip the safety fuse until you are able to determine where the short is and until the issue is fixed. In the meantime, do not use this mod.
 

DrillRX

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Ok so I ordered these from fasttech (Panasonic High Drain NCR18650PD Hybrid 2900mAh Flat Top) (http://www.fasttech.com/products/0/10001980/1233700-panasonic-ncr18650pd-18650-3-6v-2900mah)
I charged them fully in my nitecore i2 until the lights stopped flashing.
And yesterday I put one in my Smok Natural, took a first vape, second vape all fine. After my third vape the Natural got SUPER HOT (I mean like putting your hand over a stove hot) so I took the battery out and it was like I said before SUPER hot.
So im thinking and I said lets try the other one, same exact thing happened except this one was way hotter.

Am I doing or did something wrong? Please tell me what I did or what happened

After that I sat down and my computer and right on the spot ordered some aw imr 18650 from RTDVaper.
AW IMR 18650 2000 mAh

Quite a few mods I have found that the positive post is very large. If your tank posi post doesn't protrude out the bottom of the 510 threads it will short the battery every time on some mods. Some tanks with replaceable coils will also short on the threads if tightened too tight, the bottom post is "split" and will seperate and touch the sides if put on too tight.


Sent from my iPhone using Tapatalk
 
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DrillRX

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So what mod should I get? And I have some 500 ss mesh and 30 gage kenthal coming in today, and I was hoping I can build a coil.

Check your tank and see if the positive post on the bottom sticks out a little bit from the bottom of the threads. If it does NOT see if there is a way you can adjust it, or file the 510 threads down a little so it does.(don't grind on the replaceable coil, just the 510 threads).

Maybe you could post a picture of the top of your mod and a side view of the bottom of the tank where the 510 threads are.
 

Jayvaps

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I would suggest if I may, before getting another mod, go to home depot or lowes or even walmart and purchase a cheap multi meter that allows you to check voltage and resistance. They can be had for under $20.

Something like this. http://www.homedepot.com/p/Commercial-Electric-Digital-Multimeter-MAS830B/202353293#.Uo9_0W1qPSg

This will enable you to check the mod for shorts, check your batter voltage when it comes off the charger and before putting it on the charger, heck, it will even allow you to check the resistance on coils.

But they are really handy for troubleshooting issues on a mod.

Then you can check that natural for a short and you can check the voltage of the batteries off of the charger.
 
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