Subtank mini + ni200 OCC coils = spitting

[sergers]

So decided to pick up a pack of the OCC 0.15 ni200 coils for subtank mini. Vertical.


Has a blue ring instead of red.
Shows 0.19 to 0.21 resistance at room temp which I lock it in.

Never really had any issue with the OCC 0.5 non-ni200 coils.

Using dna40 and eleaf tc40.

First ni200 I tried, crazy spitting.
Using vg/pg 80/20 and 70/30.

All airholes, especially wide open spit. 400F to 550F spitting.

So tried another one, same thing spitting.

after letting it warm up a bit, held button for 5 seconds without sucking, it was spitting and leaked soo much through airholes.

I was having better taste, but that's from the spitting as I could still taste it.

I would recommend against buying the OCC ni200 coils unless they get redesigned so they don't spit. The ni200 heats up more and I think causes any liquid to get too thin and floods and leaks through air hole.

Comparing the ni200 to the regular 0.5 coils they seem identical in build except kanthal looks to have a bit of space between wraps.
The ni200 OCC looks really close and alot more wraps. Can't tell if its touching without opening one up... Maybe later.

So just playing around, I got it to stop spitting.
I just took some extra cotton that came with the subtank mini and using the screw driver that came in it shoved as much cotton in the side holes till no more could fit on the ni200 coils.

Wetted it as pushing more in to get as much in. Spitting stopped.

I think kanger put in same amount of cotton in ni200 coils as the regular coils, but the ni200 needs more or a slight diff design.

I think I might have shoved too much cotton in as not as big clouds with biggest air hole but the 2nd hole does have good taste and decent vape.

I would stick with the the regular OCC coils by kanger for now over the ni200 OCC coils by kanger

 

[sergers]

Just wanted to add the spitting returned if I went higher in temp like setting TC at 550F or chain vaped. Even when hitting TC right away when warm.

So definitely the heat of the ni200 is causing it, similar to several of the build threads with too little wick causing spitting as the juice gets real thin with ni200.

 

[dcfluegel]

hrm - have not tried any of the kanger ni200 coil heads yet, but have been rebuilding ni200 coils in the original kanger heads for my brother in law (vertical, 28 g, 3.5mm diameter, using koh gen do to wrap) and he has not had any spitting issues that I am aware of yet...

 

[sergers]

Yea seems to be an issue with the prebuilt. Even with other tanks some people having prob with their prebuilt ni200 coils.

Everyone building their own doesn't have issues or is able to correct it

 

[tedigram]

In my time reading I feel like I'm missing out on some concept re: spitting. Instead of making it another complicating variable for adjusting your powers and wicking and blah blah blah, why can't you just pop a screen into your drip top? I haven't done it yet for my subtank mini (doesn't spit much) but the iSub I was using first for sure did a hellacious amount of popping, but its built-in screen meant I never felt a single spit. Is there a downside to adding a screen to other setups that I'm not aware of?

 

[SUBHiro]

I have heard from a few people that some packs to the occ coils cause spitting. When that happened they changed from a 1.2 from one pack to a 1.2 from a different pack no more popping or spitting, it could just have been a bad batch of coils.

 

[sergers]

Never thought of that. Gonna go grab a pipe screen to try it out