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New to vaping
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btv_131 Offline
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Post: #1
New to vaping
 Hi everyone!

I am relatively new to vaping. I started about a year ago and have had a few mods with an internal battery. Getting tired of the short life of the battery and needing something to last all day, I made the plunge and bought a Captain PD1865 last weekend with a Crown 3 tank. I love it so far, but just have a few questions regarding safety. I know the basics of battery safety, like make sure the wrap is not torn, don't carry them loose, marry them, etc.

I bought two sets of batteries from my vape shop and an external charger, which has seemed to work well so far. My questions are:

-When vaping at 80w with a .25ohm coil, I notice the screen reads ".28ohm, 17.5a, and 5.20v," but when I plug these values into an ohms calculator, I notice the values are somewhat different. For example, using http://www.ohmslawcalculator.com/ohms-law-calculator, when I plug in voltage/current, the results are as follows:

Voltage: 5.2v
Current: 17.5
Resistance: 0.297
Power: 91

The values are close, but not what my mod reads. Is this an issue?

-I noticed when vaping with my .25ohm coil that the ohms seem to change when firing, sometimes to 0.26 or 0.31. Is this normal?

For batteries, I have a set of Samsung INR18650-25R, 18650 3.7V 2500mAh, are these appropriate to be using?

The cashier at my vape shop was super helpful, but just want to see what others think.

Thanks all!
02-11-2017 04:40 PM
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TinWhisker Online
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Post: #2
RE: New to vaping
Welcome. Resistance of the metal varies depending on heat (more with some than others, which is also the basis for Temp Control vaping), so don't worry about the fluctuation too much. The cells are fine. Regarding the calculator, it can't account for voltage drop across the circuit, and also most mods are accurate to a 'good enough' degree rather than absolute value perfection.
02-11-2017 04:44 PM
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8Melissa1 Offline
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Post: #3
RE: New to vaping
Hi and welcome. I personally can't be of any help on this, however there some here know this stuff pretty well and i'm sure they'll be along soon.
02-11-2017 04:50 PM
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Vanitas Offline
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Post: #4
RE: New to vaping
Material changes it's resistance with temperature, especially when it's stainless steel, Ni200, NiFe or Titanium (that's why we have temperature control). If the coil is made of kanthal (which holds it's resistance when heated well, contrary to SS, Ni200 and Ti) then ohms should stay put. 
That particular coil is SS316, so the ohm changes are natural.

Not sure about electronics though as I don't know if the mod actually pulls 5.2V (not a) out of battery, but you've always got resistance of hardware and battery sag incorporated in the actual vaping. I'd cast my vote here.

Samsung 25R are in the "top tier" of batteries.

//Edit
Forgot to say hello Smile
(This post was last modified: 02-11-2017 04:53 PM by Vanitas.)
02-11-2017 04:53 PM
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8Melissa1 Offline
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RE: New to vaping
(02-11-2017 04:50 PM)8Melissa1 Wrote:  Hi and welcome. I personally can't be of any help on this, however there some here know this stuff pretty well and i'm sure they'll be along soon.
TW wasn't here when i started my very slow typing
(This post was last modified: 02-11-2017 04:53 PM by 8Melissa1.)
02-11-2017 04:53 PM
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Vanitas Offline
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Post: #6
RE: New to vaping
Neither when I did Big Grin
02-11-2017 04:55 PM
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btv_131 Offline
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Post: #7
RE: New to vaping
Thanks all for the quick replies! Glad to be here!
02-11-2017 04:59 PM
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ecignut Offline
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Post: #8
RE: New to vaping
TW does not mess about when it comes to posting[Image: smile.gif].
02-11-2017 06:34 PM
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ecignut Offline
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Post: #9
RE: New to vaping
Now that TW has posted it is safe for my slow typing[Image: tongue.gif]. Welcome to the forum btv[Image: smile.gif]
02-11-2017 08:19 PM
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