ohms vs voltage

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Wil

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May 26, 2011
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www.awesomeclouds.com
Just posted this in another thread. Hope it helps:

Quick rundown on LR attys... You can achieve the same results by boosting voltage or lowering the resistance of the atty. Square the voltage and divide by resistance to get your wattage, and this is the number to use to compare apples to apples. For example:

A 3.7 V battery with a 3.0 ohm atomizer: (3.7 x 3.7) / 3.0 = 4.56 Watts
3.7 V with 1.5 ohm atomizer: (3.7 x 3.7) / 1.5 = 9.13 Watts
5.0 V with 3.0 ohm atomizer: (5.0 x 5.0) / 3.0 = 8.33 Watts

It does get more complicated with multiple coils. You end up with a more complicated equation. You add up 1/r (if resistance is 4, 1/4) for the number of resistors (coils), and then invert the resulting fraction. For example for a dual coil, 3 ohm atomizer, you'd get 1/3 + 1/3 = 2/3, and inverted 3/2 = 1.5 ohms. HOWEVER, I think they rate them for the total resistance, so if a dual coil atomizer is rated at 1.5 ohms, then it's two 3.0 ohm coils with an overall circuit resistance of 1.5 ohms... Confused yet?

I often use a variable voltage mod with lr attys, I just turn them down. VV allows me to buy whatever attys are cheapest...
 

Wil

Unregistered Supplier
ECF Veteran
May 26, 2011
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Chapel Hill, NC
www.awesomeclouds.com
No problem... The upper limit for reasonable vaping seems to be around 11 watts, so you can work backwards to find your target voltage...

Further, just use it how it works for you. Currently I'm using 1.6 ohm attys (tested, not rated). I use it ranging from 3.3V to 4.0V depending on what I want. I tend to like it at 3.7 first thing in the morning, then I'll drop it to 3.3 for most of the day... My point is, don't drive yourself crazy worrying about it. Keep it under 11 watts or so to avoid popping attys, and you'll be fine.
 

jp6608

Full Member
Sep 3, 2011
31
11
MA
Just posted this in another thread. Hope it helps:

Quick rundown on LR attys... You can achieve the same results by boosting voltage or lowering the resistance of the atty. Square the voltage and divide by resistance to get your wattage, and this is the number to use to compare apples to apples. For example:
...
...

This is a quick rundown? lol.. I'd like to read the long version! i'm having some problems with some 510 XL Dual Coil Carto @ 3 ohm on my vv box. Little to medium vapor, flavor is barely coming through.. and the tube is extremely hot to the touch. Doesn't come close to the standard boge at 5v.

Jcash.. I use fluxomizers and they have been great (on par with the boge cartos imo when it comes to vape/th/flavor production). There's some great tips and tricks that you can dig up on youtube to further the performance on these cartos. I'm sure these tips and tricks are also covered here on ecf but meh.. i like watching videos :)

CE2-DELUXE Clearomizer Inner Plug Removal Tip & Informational- Gotvapes.com - YouTube
 
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