Dual Coil Resistance calculation

[daigaurd]

Hi guys, quick question

When calculating the resistance of a dual coil using R=V/I , should the measured resistance of the build be doubled? I read somewhere it should

For example, I have an rba built with a dual coil, and the whole rig comes in at 0.3 ohms. To calculate the amp draw on my high drain battery, would the formula be:

I = 4.2 / 0.3

or

I = 4.2 / 0.6

or am I just crawling in the dark completely.

 

[BigBoyBlue]

4.2/.3 is the answer. That of course is if your battery is 4.2 volts

 

[daigaurd]

It will not always be operating as such but I read on baditude's blogs that for the sake of battery safety always assume your batteries have max volts

 

[ScottChensoda]

Always work on 4.2v as that's the worst case scenario. After a while the figures will become familiar to you, especially as there's a plethora of high drain batteries on the market. You might want to commit this to your bookmarks/favs, it maybe of help. As said, always enter 4.2v into the voltage box, then your build resistance, click calculate and it will then give you the current draw from the battery. Ohm's and Joule's Law Calculator

Now you have a caplamp and should be able to see the light at the end of the tunnel. Although if you're crawling you may have entered a pipe not a tunnel. Safe vaping daigaurd.

 

[daigaurd]

Thanks for replies!

I have another question, if I were to use a box mod with 2 batteries, would I double the voltage in my calculation?

 

[AzPlumber]

Thanks for replies!

I have another question, if I were to use a box mod with 2 batteries, would I double the voltage in my calculation?

In series, yes. In parallel, no

 

[Kevin littell]

Steam Engine | free vaping calculators

 

[daigaurd]

In series, yes. In parallel, no

How would you be able to tell if a mod had the batteries in parallel or series if it was not specifically stated, for instance a custom mod