K100 getting hot

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havoc1967

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Ok I got my K100 from FT today. Tried several of my tanks on it (Vivi Nova, Evod, etc) and everything was great. Then I decided to try out the cartomizer and drip trip that came with it. It got hot quick! Dumped the battery out and it, and the K100, was hot to the touch. Let them cool down, put the battery back in and then tried again....with tanks. Everything seemed fine. Any idea what caused that?
 

havoc1967

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It was actually an atomizer that came with it. So that having a short would cause it to to heat up that quick? Please explain the benefit of the multimeter to me. I have 2 other Mods, an SVD and the Bolt. Both have been trouble free with the protected 18650 batteries I use and the tanks I use (Vivi Nova, Evods, T3's,etc). I appreciate any advice and instructions you can give me. I have no interest in sub ohms or any fancy stuff.
 

DoogieTony

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Yes, a short would cause your battery to heat up quickly. If you continue to try and use it with a short it can cause your battery to go into thermal runaway and vent, which can be dangerous.

The benefit of a multimeter is mainly safety. You can quickly check your coils resistance/check for shorts and check your batteries remaining charge. You may need one for other things around the house every now and again.

If you're strictly running prebuilt coils then I suppose you can get by fine with the SVD as an ohm checker. I would check any coil/device on the SVD before using them on a mechanical just to be safe.
 

Baditude

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This is what can happen with a battery when you have a hard short. Protected Trustfire battery that was in a mechanical mod whose fire button got stuck in the "on" position. Battery became too hot to touch, burnt the pocket of the pants that the mod was in in my locker at work. Both ends of the battery blew out and gasses vented out the fire button (as was by design of the mod), but the button had to be replaced. Could have been worse.

Trustfire2.jpg

Definition of a hard short: http://en.wikipedia.org/wiki/Short_circuit

I recommend getting and using a Vape Safe Mod Fuse for your K100 for added protection against shorts. E- | Cigs | Mods | Batteries | Safety | Vaping | Vape | Safe | TheVapeSafe.com

There is some helpful information resources on batteries in this blog post that I wrote:
http://www.e-cigarette-forum.com/forum/blogs/baditude/4848-9-battery-basics-mods-imr-protected.html

Mechanical Mod Proper Usage Guide
 
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MechTech

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Aug 11, 2013
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I have a k100, running dual coil at 0.4 ohms with a mnke battery. I've been vaping fine for awhile and everythings been fine up until 10 minutes ago, vaped the k100, went good, then next vape, wouldn't fire. Button was getting hot fast! So I hurried up and took out the battery and let it sit to let it cool.

I checked the atty, everything seems ok and looks ok. I screwed off the atty and looked in the k100 contact part and this white rubber ring was chillin in there and just fell out. Never noticed it before. Could that be the cause of a short?

How do I check for a short on the atty using a multimeter?
and is this mnke battery still good/safe to use?

Thanks guys
 
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Ryedan

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You say rubber, but I'm thinking it's plastic and fits onto the end of the spring on the switch. If so, that piece of plastic is what stops current from flowing to the coil until you hit the switch. If that got out of position it might have caused the switch to make and send current to the coil. That is not a short.

If this is the issue, your battery is OK as long as it is not over-discharged. Check the voltage. More than 2.7 and it is fine. Less than 3.5 and I would charge it before using again. Less than 2.5 and it is probably toast.

You can check the atty for a short by checking its resistance. Put one lead on the center post on the battery end and the other on the body somewhere. If it is below what it should be you have a short.
 

MechTech

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Aug 11, 2013
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You say rubber, but I'm thinking it's plastic and fits onto the end of the spring on the switch. If so, that piece of plastic is what stops current from flowing to the coil until you hit the switch. If that got out of position it might have caused the switch to make and send current to the coil. That is not a short.

If this is the issue, your battery is OK as long as it is not over-discharged. Check the voltage. More than 2.7 and it is fine. Less than 3.5 and I would charge it before using again. Less than 2.5 and it is probably toast.

You can check the atty for a short by checking its resistance. Put one lead on the center post on the battery end and the other on the body somewhere. If it is below what it should be you have a short.



The charge is at 3.9, and the rubber piece was a white piece inside the part where you screw the atty onto. I took the atty off and tried it on another mod with an efest battery, fired up great. So it has to be either the k100, or bad battery? maybe the connection from where that white piece fell from?

I tried it again with adjusting the white rubber piece and the battery got instantly hot again.

I dont know if its even worth trying to try the battery again in a different mod, got hot twice already (hot enough to wear the button can burn)
 

MechTech

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The white piece which fell from the K100's connector might be a insulator for the center pin. With it missing or defective that could be creating the short. Is your K100 still under any warranty? If so, it sounds like it is now defective and shouldn't be used.


I bought it from a friend awhile ago so I'm not sure. A buddy of mine has his k100 fully disassembled and tried the top part of his k100 (the piece where the white piece fell off) on the body of my k100, with his battery and the k100 worked fine. He was also afraid to try my mnke battery and my k100 top piece.

I'm just not sure if I should try the battery again in a different mod since it's been stressed twice (got pretty hot). Should i just ditch this battery? or should be ok to try it on another mod. It just hurts to throw away a mnke lol. My other mnke batt is great by the way
 

Ryedan

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I agree with Baditude. The 510 connection is shorting. Don't use it again without fixing it as it will just do it again. If it's under warranty I would get in touch with the supplier and see what they can do for you for refund or exchange.

Good question about the battery still being safe. I don't know. If the switch got so hot that it would burn your skin twice I would worry about it and probably get rid of it. They are cheap. Vape safe :thumb:
 

MechTech

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Aug 11, 2013
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Jacksonville, FL
I agree with Baditude. The 510 connection is shorting. Don't use it again without fixing it as it will just do it again. If it's under warranty I would get in touch with the supplier and see what they can do for you for refund or exchange.

Good question about the battery still being safe. I don't know. If the switch got so hot that it would burn your skin twice I would worry about it and probably get rid of it. They are cheap. Vape safe :thumb:

Yeah the 510 connector is the only thing that stood out and looked like it shouldn't look like how it did, lol. Great, probably ruined a great battery. Looks like I have to order another one because they hit hard all the way to a recharge. Just got some sony 30amps in too, hopefully they live up to the hype

Thanks guys.
 
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