how to go high wattage on subtank coil

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jwleonhart

Full Member
Jan 5, 2015
59
4
new jersey
So I happened to burn up my Kanger subtank .5ohm coil yesterday by accidentally not switching from 50 watts back to 30 when I took my rda off...

In any case I triedbto rewick it but I ended up bending the coil a bit and just threw it out..

I've got an empty shell now and some 28 gauge and 32 gauge kanthol... With I had 26 but oh well..

I tried to make a .5ohm coil on it but that was a fail. Only 3 wraps to make it .5ohm....

So I wrapped a 1.5 ohm coil up and threw it in. Works fine to 25 watts then I get the obvious burnt taste... But if I prime it I can get a really flavorful hit at 30-35 watts...

How can I make it so that I can run something like 30 watts on the coil but not get a burnt taste. The cotton is not loose and not tight... Just a little pressure wheb pulling it through the coil..

And does it really make a difference on the ohm rating? Are there any articles about why a lower ohm coil seems to handle more wattage compared to a higher ohm coil? Should the wraps be tight or or loose like they were on the original Kanger coil? I made mine tight together...

Thanks for any explanation. I'm gonna keep fiddling around while I wait for an answer.

Thanks
 

Trailz

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Sep 4, 2014
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Generally the lower the resistance the higher the wattage it can take. Airflow and wick capacity are additional factors. I have to keep it set to 20-24W for my higher VG juice to prevent burning. The stock .5 ohm coils are I believe a 4 wrap. According to Rip Tippers video, its important to keep the coils spaced like the OEM and that the coil is centered properly. That said, if you got .5 with a 26AWG 3 wrap I'd assume 24 gauge would get you 4 wraps. I'm going to try the 1.2 ohm OCC next. Will need to drop the wattage down and hopefully the flavor is the same.
 

Croak

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Nov 13, 2012
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Right behind you...
Since I'm out of 26ga too, a 3mm, spaced, 24ga and 5 wrap setup works fine for me, putting me around 0.52 ohm. Can also handle in excess of 30w, provided you've wicked it right, which is real trick with the OCC, I went through a fair amount of cotton figuring it out and I still don't have it perfect.

I've tried tensioned micro coils at the same resistance but that really damped the flavor and was a lot more picky with wicking as well.

Best way to get wider coils inside is to take a couple pairs of pliers and gripping the square part of the base, with one set of pliers, take the other and grasp the top cap and twist, while pulling down and out. Cap pops right off, and now you've got lots of room to work. Makes everything easier. When you're done test firing/adjusting and wicked, you can just pop the cap back on with finger pressure. Next time, it'll come off much easier.

Taking the cap off, you can get a micro 10 wrap 24ga setup in there, at right at 1.0 ohms, and it'll handle a lot of power, which is good because you'll need to throw almost all of your 50 watts at it to get decent performance since that heavy wire heats slower.
 

Trailz

Super Member
ECF Veteran
Sep 4, 2014
621
259
NE OH US
Since I'm out of 26ga too, a 3mm, spaced, 24ga and 5 wrap setup works fine for me, putting me around 0.52 ohm. Can also handle in excess of 30w, provided you've wicked it right, which is real trick with the OCC, I went through a fair amount of cotton figuring it out and I still don't have it perfect.

I've tried tensioned micro coils at the same resistance but that really damped the flavor and was a lot more picky with wicking as well.

Best way to get wider coils inside is to take a couple pairs of pliers and gripping the square part of the base, with one set of pliers, take the other and grasp the top cap and twist, while pulling down and out. Cap pops right off, and now you've got lots of room to work. Makes everything easier. When you're done test firing/adjusting and wicked, you can just pop the cap back on with finger pressure. Next time, it'll come off much easier.

Taking the cap off, you can get a micro 10 wrap 24ga setup in there, at right at 1.0 ohms, and it'll handle a lot of power, which is good because you'll need to throw almost all of your 50 watts at it to get decent performance since that heavy wire heats slower.
Would you say the 5 wrap 26 gauge is better or = to the factory .5 coils?
 

Croak

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Right behind you...
Would you say the 5 wrap 26 gauge is better or = to the factory .5 coils?

That'd put you right at 0.8 ohms with 3mm/5 wraps of 26ga, and leg length is about 12mm. It means you'd need a bit more wattage to get the same vape temp as the stock coils, but should have a bit better power handling.

Overall it should have performance very close to stock, but it all comes down to wicking well and to a lesser extent getting the wrap spacing right. Do keep in mind that on every device I've ran the factory 0.5 OCCs on, and on every review, they read 0.6 ohm.
 

jwleonhart

Full Member
Jan 5, 2015
59
4
new jersey
I think the stock coil uses either 26ga or 24ga kanthal. Its thicker than the 28 I'm using but I'm attempting with 28ga because im waiting for the order I placed for 26ga and 24ga to come in.

I tried twisting the 28ga already and it seems to have had no discernable effect. It still seems as if I'm getting that burnt taste way too easily. It also seems like on the stock coil the cotton is in there incredibly tight.

I've tried loose as a goose, slight tension, and tight as hell... None seems to make a difference. Its just burnt burnt burnt. Driving me up a damned wall....
 

RickAdair

Full Member
Mar 1, 2009
27
18
I have been driving myself crazy trying to wick these also. Tonight I studied a stock coil inside and out. Noticed that the cotton is puffed up on the inside. I wicked it on the looser side, left about 3mm on the outside when I cut it. I then carefully pushed it in with a toothpick to get it to puff up on the inside. Primed it then used a small rod to push the cotton just inside the holes. That seemed to nail it for me. I get bubbles after each drag just like the stock coils.

Hope this helps. Good luck.
 

edyle

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Oct 23, 2013
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Port-of-Spain, Trinidad & Tobago
So is there a way to get 28ga kanthol to do high wattage on a tank? I'm assuming its all about wicking... Because you can make an RDA handle 50 watts wrapped with 28ga no problem

a 1 ohm 28 gauge kanthal will take 10 to 15 watts
so a 2 ohm 28 gauge kanthal or a 0.5 ohm dual (2 one ohm coils) 28 gauge kanthal will take 20 to 30 watts.

Use the steam engine calculator to see how hot or cold a coil will run at various wattages.
 

edyle

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Oct 23, 2013
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Port-of-Spain, Trinidad & Tobago
So I happened to burn up my Kanger subtank .5ohm coil yesterday by accidentally not switching from 50 watts back to 30 when I took my RDA off...

In any case I triedbto rewick it but I ended up bending the coil a bit and just threw it out..

I've got an empty shell now and some 28 gauge and 32 gauge kanthol... With I had 26 but oh well..

I tried to make a .5ohm coil on it but that was a fail. Only 3 wraps to make it .5ohm....

So I wrapped a 1.5 ohm coil up and threw it in. Works fine to 25 watts then I get the obvious burnt taste... But if I prime it I can get a really flavorful hit at 30-35 watts...

How can I make it so that I can run something like 30 watts on the coil but not get a burnt taste. The cotton is not loose and not tight... Just a little pressure wheb pulling it through the coil..

And does it really make a difference on the ohm rating? Are there any articles about why a lower ohm coil seems to handle more wattage compared to a higher ohm coil? Should the wraps be tight or or loose like they were on the original Kanger coil? I made mine tight together...

Thanks for any explanation. I'm gonna keep fiddling around while I wait for an answer.

Thanks

Lower ohm coils do not handle more wattage compared to a higher ohm coil
It is thicker wire that handles higher wattage; the thicker wire has lower ohms per inch.
 
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