Watts up with Volts

[RAV]

Hi all,

I'm brand new to vaping and have just burnt my first coil, pretty much immediately. So while I wait for new coils to turn up in the mail, I'm smoking a ciggie and pondering my folly.

So you know (or will know) Ohms Law: E^2 = P x R

Ohms law in mind; I am immediately confused by my variable voltage device (MVP 2.0). It can change volts(E) and watts(P) independently. But since my coil has a fixed resistance( R ), how can watts AND volts be variable simultaneously?

pre-Thanks heaps for help on this.

Rav

Edited December 17, 2014 by RAV

[RAV]

Allow me to face palm myself...

Baditude from another forum answered this question.

"With variable voltage mode (U = voltage), you figure out what the ohm rating of the coil you are using. Press both + and - buttons on the MVP2 simultaneously. The first numbers that come up is the coil resistance in ohms. A - 2.0 . (The next number will be the battery voltage.)

Then do the Ohms Plus Two Formula. In your head, add the ohm and add the number "2". The sum will be the suggested voltage. 2 ohms + 2 = 4 volts. Adjust to your personal preference.

In variable wattage mode (P = power mode), you set the power (from past experience and preference) to a certain wattage, say 7 watts. Then if you change tanks which may have a different coil resistance, the MVP's processor recognizes the change in resistance, makes the calculations and sets the ouput so that you are still applying 7 watts output to that coil.

Which ever mode you last made a setting for, the MVP stays in that setting."

...Well, at least I didn't break math.

RAV

Edited December 17, 2014 by RAV

[jasonculp]

...Well, at least I didn't break math.

RAV

That made me laugh out loud and is going to make my day start great.... "break math".... I could probably do that...

I am glad you figured it out!. I have met people that don't get that even after thorough explanation!

Welcome to Vapor Talk!

[Earthling789]

Welcome to VT...

And I'm glad you got the answer (and understood it). I know people with degrees in electronics that can't grasp the concept of EITHER / OR... you can't set BOTH Voltage AND Wattage... you only set one of them, and the circuitry adjusts the other parameter to provide the setting you selected, based on the resistance of the coil in your tank.

Using Wattage mode (P), is how most of us use the MVP... that way you can set 8.5W and get 8.5W, regardless of the tank's coil resistance.

[JohnnyFog]

Hi all,

I'm brand new to vaping and have just burnt my first coil, pretty much immediately. So while I wait for new coils to turn up in the mail, I'm smoking a ciggie and pondering my folly.

I sorta anticipated this type of issue when I got started vaping. It took me 3 attempts to find the 'right' vaping product in terms of equipment. The blu e-Cigs were pretty much a joke for me. I upgraded to this electronic cigarette called the SmokeStik Ultra and I ran into problems getting replacement coils for them locally. When I finally found a 'real' vape shop, I got hooked up with the Eleaf iStick and an Aspire Nautilus Mini tank. I am so happy with that setup that I bought another set of the same stuff along with an extra 5-pack of the coil replacements.

Since I got setup on the current hardware, I have managed to not have a regular cigarette. That started for me on Thursday of last week.

TODAY I have had some interesting cravings for a regular smoke... I have fought it off so far...