Question on ohms in 2 different tanks

[New2vaps]

Hi everyone, I actually confused about about ohms in 2 different tanks. One tank is the PROTANK and the second is the PURITANK.

The Protank I am using a 1.8ohms Kanger PROTANK coil. The Puritank I am using a 1.8ohms Kanger EVOD coil.

Also using an MVP for mod which is VV ( does not have VW ) and my juice is 50/50

I was under the impression that using a 1.8ohms coil my ideal VV should be set around 3.7 volts. That hold true for me. I have several EVODs and when I go past 3.9v I start getting the burnt taste. Also with the Protank when I go over 3.9 I start getting the burnt taste.

Now here is where I am really confused. The Puritank I can actually go to 4.2 volts and no burnt taste. Actually I taste the juice better at higher volts than I would at 3.7v. Is it because it's a little larger tank than the protank that it needs more volts ? I find this to be very strange. Is it even safe to go that high on a 1.8ohms?

Thanks

 

[Baditude]

I often advise new vapors to use the above Safe Vaping Power Chart as a guideline for choosing the proper voltage/resistance configuration. It is meant only as a guideline, and is not set in stone, so all the detractors that complain about me posting the chart can just stop. Another method that people use is to double the number of the resistance, and use that voltage (2.0 ohm = 4 volts).

What it all boils down to is to set your voltage to your taste. Some flavors will taste best in the low 3.4 - 3.8 volt range. Others in the 4.0 - 4.5 volt range. Start out with a lower voltage and work your way up in increments until you taste burned juice, then back down a little.

I can't explain your above situation with the different tanks with the same resistance. I wouldn't think the size of the tank would have any bearing on the taste of the juice at all. The tank is just a reservoir for the juice. Taste comes from vaporizing the juice, and that all happens at the atomizer level.

I don't recall if the MVP has a built-in ohm checker. If it does, check the resistance of each tank. Coils have a habit of changing resistance, and they may not be what was advertised.

 

[jfountain2]

Are you sure your coils are really 1.8ohms?
I used to use protanks and found that when I bought new coils they would vary greatly in ohm's.
I would check it on a meter to see if they are actually the same ohm's.

 

[New2vaps]

Unfortunately the MVP does not have an ohms checker. I guess it's possible the EVOD coil might be higher than the 1.8ohm advertised. I purchased them as a 5 pack and it stated 1.8ohm on the pack. I ordered a VAMO so when I get it I will check the ohms and report back.

Thank you both.

 

[UncleChuck]

There could be a few things causing this difference:

As others have stated, the actual coil resistance might not perfectly match the rated resistance. Back when I was trying out vivi novas I'd say on average their heads were .2ohm off from their rating, either higher or lower. They may be both rated for 1.8, but one could be 1.6 and the other 2.0 which would have a bit difference on performance at a given voltage. Coils also change resistance slightly as they are used, so that could also be it.

Even if you check the real ohms and they both read exactly 1.8 it's still very possible for them to perform differently. If one coil was wrapped tightly, as in close together wraps, not tightly wrapped around the win, then it would heat up faster and potentially generate more heat at a given voltage compared to a coil that is more spread out. This could cause one head to taste burnt while the other doesn't at the same voltage.

Additionally, it's possible the burnt tasting heads have a slightly choked wick. This is when the coil is wrapped too tightly around the wick, basically squeezing the wick "shut" so that juice doesn't feed well. Having gone through tons of various clearo heads trying to find one that actually performed well, I noticed a ton of them had choked wicks to varying degrees. Or loose coils, or any other number of random issues.

The cause for your problem could be any number of factors, or combination of, but as long as you are getting the performance you want and are happy with the vape I wouldn't be too concerned about the whats and whys (unless you want to delve deep into the tech and theory behind vaping)

 

[New2vaps]

Thanks for your response UncleChuck. I came to the conclusion that not all coils are created equal even though they came in the same box.