Electrical Principle Behind Low/High Ohm Attys ?

[MrSmith99]

I am looking at GotVapes FLüXomizer CE2 CLEAR. They seem to come in many different ohms, from 2.4 to 3.2 in ranges of .02. Their web site, and most youtube videos, don't explain why I may want one over another, other than saying this one or that one produces more vapor. In fact, the lack of basic understanding of electrical principles is really quite astounding! (Myself included).

Please explain the basic electrical principle behind the operation of a low/high ohm atty and why one is better than the other. Does one make the coil hotter? Does it use more current? How does this affect the battery? Ect... Also, all my gear is standard Joytech 510 and Ego if that makes a difference.

Thanks for any replies!





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[Hoosier]

Oh boy! I love electricity! If you can follow some simple DC equations I think I can help you here.

First thing is Power. Power is what does the work which in our case is making heat to boil juice to make vapor. The more heat, the quicker things boil. A candle flame has enough heat to boil water, but it takes quite a bit longer than a propane torch. The candle is low power and the torch is high power. Power is a product of flow (current) and potential (voltage). P=IV. To increase power I can increase current or voltage. If I have a typical PV battery then I cannot change voltage (V), just current (I).

I=V/R. Current is voltage divided by resistance (Ohms). So to increase current (I) my resistance must drop (Ohms) because I cannot change the voltage. Divide by a smaller number and the result is larger. Divide by a larger number and the result is smaller.

We can combine the two equations for P=VV/R or Power, in Watts is equal to Voltage squared divided by Resistance in Ohms.

Increasing power is most effective by increasing voltage, but with a fixed battery voltage that is impossible, so we are left with reducing Ohms, resistance, to increase power, or heat, or TH, or vapor production. All can be terms for the same thing as power.

Now batteries have an upper limit of current they can discharge, so the power output of a single battery is limited, but the equations work over the typical ranges of atty resistances for the larger batteries. (Usually 600 mAh or so). That is also why using low resistance attys have been known to reduce the life of standard batteries. The LR's just pull more current than those standard batteries are designed to give.

Hopefully this simplified answer is enough to give you an understanding of the principles behind different resistances of attys, or cartos and what it can do for you.

Have Fun!

 

[Kurt]

Nice response, Hoosier! Just want to add that many of us think in terms of watts for vaping pleasure, not volts. 8-10 watts seems to be about where most people like to vape. My 5V PV with 2.5 ohm 510 attys will vape at 10 watts. I tend to like that sometimes, but mostly prefer around 8 watts.

Its also should be noted that while the battery material for a regular 510 battery is Li-ion and in theory should be giving 3.7-4.2V when fresh, this battery is voltage regulated and has a working voltage of only about 3.2V. Same for the eGo/Tornado fat batts. The Hello016 fat bat is a true 3.7V PV, as are the 3.7V box mods. Just wanted to add this info, because there really is a power difference between a 2.5 ohm atty on a regular 510 batt and a true 3.7V device.