My mech mod getting hot?

[sciflee]

I'm new to vaping and building mech mods. Like TOTALLY NEW with little knowledge. I got a K100 and a Trident. My problem is that it gets quite hot after vaping a few times. Also, I realize that my wire gets burnt quite fast after like several uses. And YES, I do replace it and it gets burnt after a few times as well. (I dont get a burnt taste) Any solutions to my problems? The arrows are pointing to the places that my mech mod gets hot.

ALSO, I BOUGHT A SONY 18650 BATTERY SO ITS NOT THE BATTERY PROBLEM. When I take out the battery it is NOT hot.

 

[Rickajho]

Well, what's the resistance of your coil build?

 

[sciflee]

1.2 , dual coil

 

[CreepyLady]

2 1.2s or 2 2.4s?

 

[dice57]

Yeah, what he said^, what's you resistance. Pic wasn't that good on the build, but it looked like you had a lot of wick in there too. The more wick you have can help retain heat build up. My guess is that it is your rda that is overheating and not the mech mod itself, unless your build is lower than .2 ohms, that is. Also, in adequate air supply can contribute to overheating of your rda.

As long as you don't have a short and you build is way sub ohm'd you should be ok and the focus should be on the build's ohm, wick density and location and size of air holes in relation to the coil.

a 1.2 ohm dual coil is a lot of wire, bet it takes a bit to heat up to vape temp. With your set up I'd be aiming at .3-.5 ohms. If you have a dual coil with that high of total ohms, they will tend to retain heat and not cool of quickly, also your watts will be low for a mech mod.

 

[Kropotkin]

Yep. It sounds like your resistance is too low - though I personally find the Trident a pretty warm vape in general.

But seriously. If you're an absolute newb, you probably shouldn't be messing around with dual coil RBAs and mechanical mods, at least until you've researched a bit and know what you're doing.

You could start with this overview of RBAs:

An Introduction to Rebuildables - YouTube

And there are lots more online. Really! Do it!



Editing to add a tutorial on wire and resistance:

http://www.youtube.com/watch?v=RbyOjHBRPzc

Good luck!

 

[sciflee]

I have a pretty good understanding on how to build and its resistance and what not. I'm pretty sure my battery could handle low ohms. I still do not understand why its getting hot.

 

[CreepyLady]

What is the resistance of each coil in the dual build?

 

[roadie]

I've also got a K100 and an RDA. To put things into perspective: I have a .5 dual coil setup, and a .5 single coil setup. The dual coil will get a bit hotter because of the "on" time or lag time required for it to heat up. The RDA will get a bit warm when vaping for awhile, or even a little hot. However, the battery or switch should NEVER get hot, just the slightest bit warm to the touch at the most. You may want to try a single coil setup around 1 ohm and see if you like it better.

 

[Gresh11]

Sciflee, whatever you do, DO NOT aim for a .5 ohm build. This is very dangerous for an inexperienced vapor. If I were you I would start off on single coil builds for a while until you get used to how your equipment operates. A 1.2ohm single coil is a good place to start. Get a bit of a feel for your mod. Well done in choosing good batteries, I take it they are the 30amp version? Dice57, you should be ashamed of yourself!

 

[shorestyle]

I'm running a dual microcoil in an IGO-W at .4 ohms. My atty will get warm occasionally when I'm vaping drag after drag for an extended period of time. In which case I let it cool down for a bit. There's significantly more heat produced with a dual coil (twice as much, really). From what it looks like with your arrows, your atty is probably doing the same thing and just transferring heat to the top of your mod. How long of drags are you taking on this set-up? How much time in between drags?

Your wire looking burnt might be because of your juice. With thicker, darker juices the juice will get gunked up on the coils pretty easily. Just dry burn it until it's gone.

 

[Asbestos4004]

 

[cramptholomew]

1.2 , dual coil

1.2 or .12?

 

[havinfun1]

Just in case there's no misunderstanding.

2x1.2=.6 ohm
2x2.4=1.2 ohm
2x3.0=1.5 ohm
etc

 

[Sirius]

Glad I stumbled onto this thread.I just built a sub ohm dual coil 28ga Kanthal at (.57) ohms and my mod is getting a lot warmer than it
does with my usual build,(.85 to .95) and I was getting a bit worried as I was advised to safely sub ohm I needed to use Sony 30A 1860s and I still have the Efest 18650s in my mod. Maybe I won't blow my face off.I sure hope not!I ordered the Sonys they just haven't got here yet.
Good info here for us noobs at micro coil builds though.

 

[shorestyle]

Glad I stumbled onto this thread.I just built a sub ohm dual coil 28ga Kanthal at (.57) ohms and my mod is getting a lot warmer than it
does with my usual build,(.85 to .95) and I was getting a bit worried as I was advised to safely sub ohm I needed to use Sony 30A 1860s and I still have the Efest 18650s in my mod. Maybe I won't blow my face off.I sure hope not!I ordered the Sonys they just haven't got here yet.
Good info here for us noobs at micro coil builds though.

.57 ohms at a full charged battery (4.1 volts) = 7.2 amps. You're good.

 

[Sirius]

.57 ohms at a full charged battery (4.1 volts) = 7.2 amps. You're good.

These are the 3.7 Efests..I swear Im just not good at calculating that ohms law thingie..lol
The Sony 18650s I ordered are 3.7 also..Did I screw up?

 

[Bunnykiller]

its called heat transfer, the coil is heating up all that nummy juice saturationg all that pile of wick which in turn heats up the base of the RBA/RDA which heats up the top of the mod. lets say you are doing a total 1.2 ohm setup at 3.7V... thats about 12W, the same as a brake light bulb in a car... a fair amount of heat going on in there...

 

[CreepyLady]

These are the 3.7 Efests..I swear Im just not good at calculating that ohms law thingie..lol
The Sony 18650s I ordered are 3.7 also..Did I screw up?

What matters in the calculation of amps is your C rating. If you ordered a Sony Hybrid us18650v3 you have 10 amp C rating, Sony Hybrids us18650vct3 and us18650vtc4 have 30.

So if you are fully charged at 4.1 Volts and your coil is .57 - you divide 4.1 by .57 = 7.19 Amps which is a bit under 10. If your C rating is 10 amps you are neither maxing nor exceeding the battery capability and you are in good parameters Hope that makes it semi-easy

 

[Sirius]

What matters in the calculation of amps is your C rating. If you ordered a Sony Hybrid us18650v3 you have 10 amp C rating, Sony Hybrids us18650vct3 and us18650vtc4 have 30.

So if you are fully charged at 4.1 Volts and your coil is .57 - you divide 4.1 by .57 = 7.19 Amps which is a bit under 10. If your C rating is 10 amps you are neither maxing nor exceeding the battery capability and you are in good parameters Hope that makes it semi-easy

Well it sure helped tyvm