Joyetech Evic VT 60 Watt
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Ughhh so aggravatedThe Ego One Mega when I screw it on asks me for a new coil/same and the Subtank Mini sometimes will ask but it keeps jumping the
around from .11 to .12 to .13 to .14 to .16 and to .17. I am so
I'm having the same problem - resistance lock isn't working. People are blaming the build quality of the Kanger ni200 coils, but has anyone tried this mod with the Atlantis ni200 coils?
Found a new problem on this mod. I went to bed and the mod was still on nickel mode with my atomizer on top. I woke up this morning reached over and took a vape and got a nasty burnt hit
Interesting. I will do an experiment and leave mine in Ni mode overnight and see what happens. I haven't had the device switch modes on me yet.
Kanger OCC coils even regular ones have been inconsistent... I can't count the amount of times the same coil read 0.7 then0.6 before settling at 0.5..
I think building your own coils will be the way to go
I think building your own coils will be the way to go
Mine was still in Ni mode when I woke up. Hitting like a champ. It settled in at .12 on the kanger coil, have it set at 500* and 30w.
I wonder if the lock is indeed working and the temp of the coil is going below what it is/was locked to.
I believe the resistance lock sets the device resistance to a certain temperature at that certain point. Obviously the resistance can and will change when heated, and I think it will do the same if cooled. If the resistance is lower than when it was locked then the device should know that it is cooler than when it was locked.
I don't have mine yet so I can not test it out, but putting the mod in the fridge or freezer should yield a lower resistance than what it was set to at room temperature. Theoretically it should yield the same vape even though the resistance is lower than what it was locked to. It will just take a little more time to reach the target temp in microsecond(s) or millisecond(s).
Now if the resistance is indeed truly changing then all the device needs to be relocked. I assume that there may be a break in period where the coil will find its happy place and settle in to its final resistance. The pin being responsible for holding the coil legs in full contact isn't ideal IMO and that could be the root of the problem with the resistance changing. Remember we are dealing with hundredths or thousandths of an ohm and any sketchy connection will skew the resistance by a great deal when looking at such small resistance amounts.
Just thinking out loud...
I believe the resistance lock sets the device resistance to a certain temperature at that certain point. Obviously the resistance can and will change when heated, and I think it will do the same if cooled. If the resistance is lower than when it was locked then the device should know that it is cooler than when it was locked.
I don't have mine yet so I can not test it out, but putting the mod in the fridge or freezer should yield a lower resistance than what it was set to at room temperature. Theoretically it should yield the same vape even though the resistance is lower than what it was locked to. It will just take a little more time to reach the target temp in microsecond(s) or millisecond(s).
Now if the resistance is indeed truly changing then all the device needs to be relocked. I assume that there may be a break in period where the coil will find its happy place and settle in to its final resistance. The pin being responsible for holding the coil legs in full contact isn't ideal IMO and that could be the root of the problem with the resistance changing. Remember we are dealing with hundredths or thousandths of an ohm and any sketchy connection will skew the resistance by a great deal when looking at such small resistance amounts.
Just thinking out loud...
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^This^ A+. I think that's exactly what's happening and I couldn't agree more that rubber baby buggy bumpers are inadequate to provide solid electrical contact for TP devices. An RTA is the best option imo.
No, because the vape changes. When locked in at .15 and hitting it at .12...it's hitting at .12
The good '69 Camaro would be white with an ORANGE stripe, not blue.
Oh yeah, it would be a drop-top with a 396 and 4-speed too!
Ordered mine yesterday, USPS updated this am, it leaving Hawaii and expected here on Friday! I'll be shocked if USPS pulls that off. At least I still have the Saturday delivery if it doesn't make it.
Those Kanger coils are known for hot legs....wanna screw up a perfectly good vape?...run a coil with hot legs.
I have been using my VT for the past 5 days. I wanted a TC device for out n about. The TC is very simple to set, atty lock does work. So many nice features in this device, every thing i need. I did not test out the ti coil. But i have been making my own nickle coils a few months now. .1 ohm coil in a derringer rda, WOW. .1 ohm coil in a subtank mini, yumm.
Actually, the SX Mini or the IPV4 is a good test bed to check the resistance of the coil on since with the Yihi chip you can force a new reading on the coil. So I took the Subtank Mini with the nickel OCC and put it on the SX Mini and pressed both the up and down buttons. It had been sitting there unused for probably 15 minutes to half an hour. The resistance came up as 0.201 ohms. Pressed both again and the resistance dropped to 0.192 ohms. Vaped it once at 40 joules and 450 degrees. Let it sit for 5 minutes. Checked the resistance again and it read as 0.143 ohms. Vaped it once again and let it sit for 5 minutes and then checked the resistance and it read as 0.128 ohms. Let it sit for a few minutes and checked resistance again and it read as 0.134 ohms. Checked it again and it read as 0.129 ohms. So basically with the coil I have in the Subtank Mini right now, that initial resistance reading is about 0.07 ohms high, but then over time it settles down to be roughly around 0.13 ohms.
This is the same result that I am getting with both the rDNA40 and the evic-VT. It starts out high, and then it settles down and stays constant at 0.13 ohms.
With the Yihi chip, since you have to manually set the resistance by "registering" it, the lock works because once you set it, the resistance never changes. With the rDNA40 and the evic-VT, it appears that the mod is always validating the resistance and it will change, even if the lock is activated.
I also took the Atlantis v2 with the nickel coil that I was using on the SX Mini and put it on the evic-VT. It registered at 0.14 ohms and stayed constant at 0.14 ohms.
So based on my total unscientific testing, it appears that the OCC coils are much more subject to these resistance jumps than the Atlantis coils. I'm much more confident that the issue lies with the coils and not with the mod.
This is the same result that I am getting with both the rDNA40 and the evic-VT. It starts out high, and then it settles down and stays constant at 0.13 ohms.
With the Yihi chip, since you have to manually set the resistance by "registering" it, the lock works because once you set it, the resistance never changes. With the rDNA40 and the evic-VT, it appears that the mod is always validating the resistance and it will change, even if the lock is activated.
I also took the Atlantis v2 with the nickel coil that I was using on the SX Mini and put it on the evic-VT. It registered at 0.14 ohms and stayed constant at 0.14 ohms.
So based on my total unscientific testing, it appears that the OCC coils are much more subject to these resistance jumps than the Atlantis coils. I'm much more confident that the issue lies with the coils and not with the mod.
Yes just arrived, something to play with this evening
Thanks for making our point; the device is locked and firing at the locked res even though the atty is at some other varying res.
You have that backwards. It was locked at .15 and was hitting at .12.
Ok, I wasn't clear. If the vt is locked at a specific res it appears to ignore the "actual" res of the atty. So if your atty res drops or rises the vt applies voltage as if the res didn't change. So if your atty res drops your actual wattage will be greater; if your atty res rises your actual wattage will be less. At least that's what appears to be happening. I really don't understand the purpose of the whole res-lock feature anyway; I like my mod to track my atty res so I get the same wattage applied with every vape.
Yes, but limited to your set wattage...which is too low if the res drops, as it requires more power to heat the coil.
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