PLZ help me. My vapor flask v2 + subtank mini does not work properly

[againsilver]

First of all, I'm not english user. sry to my poor english. But I really need your help...


I bought a vapor flask v2 clone and authentic kangertech subtank mini at fasttech about 3 weeks ago(batteries are samsung 18650 25R).

At first, when I received my package, they work really fine(0.5ohm OCC, 30W)

About use them 1 weeks, suddenly flask's display says 'short warning'. LITERALLY, suddenly.

I vaped it and gently put it on table about 10min, and then I tried vape it again, things happen that I said above.

So I thought 'well, it's okay. Maybe coil is dead or something'. I changed coil(rba part of subtank mini, which resistance is 0.5ohm).

Problem appears since that time.

Problem 1. Voltage
It does not shoot right voltage. As I said I use 0.5 ohm with 25-30W, but my flask shoot just 2.5-2.8v.
When I set watt at low level(like 7W, 15W), flask shoot about 1.8-1.9v.
Occasionally it fire above 3.0v, but soon it say 'low voltage' regardless of charging percent(I charge my battery very often. Always above 80% charge).

Problem 2. Battery
I'm not sure this problem came from battery itself or cause of flask's fault.
As you know, on flask display there is little battery icon that indicate how much battery I have.
It says 'fully charged' when I dont firing, but change 'empty' during firing(As I said above, usually 2.5-2.8v, occasionally above 3v).
I rember it didnt like that when I used it first.


What I tried to fix it are...

- check the battery : I dont have battery checker, so I checked it at battery shop near the home. They said battery checker says my battery voltage 4.2v.
- check the atty : I find some articles that subtank has issue about 510 connect pin, so I checked it and my subtank was fine.
- cleaning : clean thoroughly with alcohol and cotton bud.
- ressembly : I checked inside of mod and It looks fine...

But those above are nothing help. What can I try other thing to fix my mod?

 

[lenon]

The only advice I can give you is to check the 510 pin on the mod. Is it a fixed type? If it is, sometimes those can get pushed down and they stop making a good connection. You can try getting a pair of small needle nose pliers and *gently* pull up on it, and see if you can get it to make a good connection again. If you find that your problem is fixed after pulling the pin up a little, remember not to screw your atty down so tightly in the future.

Also, you mentioned cleaning, but did you clean the threads of the 510 connection on the *mod*, not the atty. If not, try that too. If neither of those work, my next step would be to return the device and try to get a vaporflask v3 clone.

 

[againsilver]

Hi lenon. My mod has spring loaded connector pin. So first solution is ruled out. And also, I cleaned bot atty and mod itself.
And, I cant paid back cuz it will be so uncomportable(custom, shipping fee, etc.)

 

[Vatic]

do you have another device that you can check your subtank on? if your using stock coils, Its usually a bad connection.