battery extremly hot after accidentally making mod too tight

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aycue1

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Aug 22, 2013
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I twisted on my k100 so it was in the right setting to use an 18650 battery, little did i know i didnt know i turned the k100 too tight and it was firing on its own. I didnt notice for atleast 5 minutes and picked up the unit and it was extremly hot. Would the battery be safe to use still or should i stop, it was quite hot where it would surprise if i touched it without knowing but i would be able to hold onto it without it actually burning.



EDIT: I dont know if it was actually firing or not, because if it was im guessing my wick should be dry, but it is still quite moist with the juice and i can still smell it. I dont really know what cause the whole unit to be this hot if i wasnt using it. I may of fired it may have not tbh i dont know because the wick is still kinda wet so not too sure. Any ideas anyone?

Thanks
 
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Baditude

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If it was me, I would not use that battery again. To get that hot, it likely has internal damage. Is it a protected Li Ion or a safe chemistry IMR battery? What brand of battery?

Inspect the battery closely. Is there any bubbling of the battery wrap? Do the ends look normal (symetrical)? Do they look like they split open to vent?
 
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Baditude

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just my opinion, but i would personally toss it. Batteries are not all that expensive, and why risk using a potentially hazardous piece of equipment?

These are my sentiments, too.

If it was an IMR battery, it likely would only vent gas. However, even an IMR battery can cause a fire. http://www.e-cigarette-forum.com/forum/new-members-information/190146-pictures-serious-battery-failure-imr-18650-a.html#post3265928

If it was a protected Li Ion battery, the protective circuit may be blown. At that point, it's an unprotected Li Ion, which you don't want to use, especially in a mechanical mod that has no extra protection. Unprotected Li Ions can vent flames, and potentially explode like an M-80.
 
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WarHawk-AVG

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If it didn't vent...it should be ok

However stressing it like you did by getting it REALLY warm means you just cut the life expectancy of the charges down quite a bit!

This is why it is a very good idea to NEVER snatch a Li Ion battery off charge (when it is at it's warmest from absorbing all the energy) and IMMEDIATELY go into high current drain situations (aka vaping!) Let it sit for a while, cool off and stabilize...

With a hot battery it was just pushing really hard, it was firing THRU that resistive coil drawing HIGH amps but not a "perfect short" which causes it to push TOO MUCH amps causing a 'splody 'splody

once it cools and after a good re-charge..it should be good to go...but don't expect it to last 500+ charge cycles now (well depending on how deep you discharged it)

What was the resistance of the coil it was firing thru...that should tell you how many amps it was pushing for those 5 minutes or so

The batteries that explode/burn or vent violently are due to either going to extremes, pushing TOO much current (a short) or too much voltage (as in that daffy lady who claimed "4 foot flames" from her eGo)
 
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aycue1

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Aug 22, 2013
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The battery i was using was an efest IMR 18650 battery. I have a picture of it of a line on the sticker. I did notice this line BEFORE all this happened and dont know if it was safe still. Im not sure if posting a link is how the rules work on this forum so sorry if it wrong. http://i.imgur.com/BZqk6IL.jpg

I also have this panasonic protect3ed 18650 i was using but after using it i took the battery out and noticed this liquid/stain on the side and never used it again, dont knwo if its something to worry about.
imgur: the simple image sharer

EDIT: the ohms it was running i dont remember off the top of my head because i used my friends atomizer reader, but i think it was running around .27 ohms

Thanks for all the feedback guys!
 
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WarHawk-AVG

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The battery i was using was an efest IMR 18650 battery. I have a picture of it of a line on the sticker. I did notice this line BEFORE all this happened and dont know if it was safe still. Im not sure if posting a link is how the rules work on this forum so sorry if it wrong. http://i.imgur.com/BZqk6IL.jpg

I also have this panasonic protect3ed 18650 i was using but after using it i took the battery out and noticed this liquid/stain on the side and never used it again, dont knwo if its something to worry about.
imgur: the simple image sharer

EDIT: the ohms it was running i dont remember off the top of my head because i used my friends atomizer reader, but i think it was running around .27 ohms

Thanks for all the feedback guys!
Yeah..that's a sub ohm ALOT of current..if it was a normal resistance coil I would say no problem..but thru that..I say toss it or...


Yeah...it's my first youtube video meme heh

Unless you have a normal resistance coil rig you could run it in that wouldn't push that battery to it's maximum
 
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aznzing03

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Aug 17, 2013
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I had the same issue with my K100 when I purchased it. My tanks weren't firing but the battery got really hot with the mod when I tightened it down too far.
Found that it actually creates its own circuit under too tight of pressure but doesn't translate to the tank or 510 connection. Don't know why. Just haven't tightened down my mod that hard since and it's been fine.
I will say though that with my flat top batteries, I can tightened it down all the way and have no issues so far.
 

jefsview

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The battery i was using was an efest IMR 18650 battery. I have a picture of it of a line on the sticker. I did notice this line BEFORE all this happened and dont know if it was safe still. Im not sure if posting a link is how the rules work on this forum so sorry if it wrong. http://i.imgur.com/BZqk6IL.jpg

I also have this panasonic protect3ed 18650 i was using but after using it i took the battery out and noticed this liquid/stain on the side and never used it again, dont knwo if its something to worry about.
imgur: the simple image sharer

EDIT: the ohms it was running i dont remember off the top of my head because i used my friends atomizer reader, but i think it was running around .27 ohms

Thanks for all the feedback guys!

:facepalm:

okey-dokey
 

Baditude

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The battery i was using was an efest IMR 18650 battery.
EDIT: the ohms it was running i dont remember off the top of my head because i used my friends atomizer reader, but i think it was running around .27 ohms

Whether it was the mod that caused the battery to get hot or not, those Efests IMR's are probably not adequate for sub ohm vaping THAT LOW.

http://www.e-cigarette-forum.com/forum/rebuildable-atomizer-systems/432181-need-help-picking-best-battery-sub-ohm-vaping.html


Look for AW 18650 IMR 1600 mAh or MNKE 18650 IMR 1500 mAh.

Batteries : MNKE IMR 18650
AW IMR 18650 1600 mAh
 
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Ryedan

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It would be safe to use, but you might have weakened the battery by stressing it so much.

Hmm, are you sure? If aycue1 uses it and it blows up in his/her face, are you willing to pay his/her medical bills? Plus costs for pain and suffering?

I know, questions, questions. But inquiring minds ...
 

Ryedan

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The battery i was using was an efest IMR 18650 battery.

I also have this panasonic protect3ed 18650 i was using but after using it i took the battery out and noticed this liquid/stain on the side and never used it again, dont knwo if its something to worry about.

EDIT: the ohms it was running i dont remember off the top of my head because i used my friends atomizer reader, but i think it was running around .27 ohms

With a fresh battery, at 0.27 ohms, you are drawing 13.9 amps at 3.75 volts (taking some voltage drop into account). I don't know what the maximum discharge rate is for the Efest or that Panasonic battery, but I doubt it is more than 10 amps. That's bad as these batteries will be getting warm as you use them. A short and it just gets worse.

For sub-ohm use, know how much current your device will draw with a fresh battery. Here is an online Ohms law calculator. Put in values for resistance (ohms) and volts (the battery) and it will tell you the current (amps) the battery will be outputting. If it outputs more than it is rated for, it will heat up. Of course you have to have a digital multi meter for this. If you don't have one, Google it. I bought one off Amazon for about $10 and it does the job.

You can find out how many amps a battery is rated for online. Google is your friend here. If I can't find that data for a battery, I don't buy it. I believe you can safely assume max voltage under load to be around 3.75 with a coil that low in resistance.

AW 18650 2,000 mAh output 10 amps.
Panasonic hybrid output 10 amps.
AW 1,600 mAh 18650 output 16 amps.
MNKE 18650 output 20 amps.
Sony US18650VTC3 output 30 amps.

Vape safe :thumb:
 
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aycue1

Full Member
Aug 22, 2013
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With a fresh battery, at 0.27 ohms, you are drawing 13.9 amps at 3.75 volts (taking some voltage drop into account). I don't know what the maximum discharge rate is for the Efest or that Panasonic battery, but I doubt it is more than 10 amps. That's bad as these batteries will be getting warm as you use them. A short and it just gets worse.

For sub-ohm use, know how much current your device will draw with a fresh battery. Here is an online Ohms law calculator. Put in values for resistance (ohms) and volts (the battery) and it will tell you the current (amps) the battery will be outputting. If it outputs more than it is rated for, it will heat up. Of course you have to have a digital multi meter for this. If you don't have one, Google it. I bought one off Amazon for about $10 and it does the job.

You can find out how many amps a battery is rated for online. Google is your friend here. If I can't find that data for a battery, I don't buy it. I believe you can safely assume max voltage under load to be around 3.75 with a coil that low in resistance.

AW 18650 2,000 mAh output 10 amps.
Panasonic hybrid output 10 amps.
AW 1,600 mAh 18650 output 16 amps.
MNKE 18650 output 20 amps.
Sony US18650VTC3 output 30 amps.

Vape safe :thumb:

extremly helpful, will take all the things you said into consideration. thanks
 
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