Temp control

[Zutankhamun]

When using a temp control device with a lower gauge wire, the resistance is very low. Do the same rules apply with amps when the device is tc. Example; If I build .15 dual coil with ni200 it takes 16 amps from the battery. I only like using 50% of the cdr of say, my Samsung 25r so that would be 10 Amps. Do the same rules apply in terms of amperage when using nickel as opposed to kanthal? Thanks

 

[Eitje]

Yes and no. Yes to the extend, it depends how high you set the wattage on your device. If you set it high enough the device will fire accordingly and use a potential high current (amps)
However you can't compare this 1 to 1 with power mode as the device is not likely to keep firing at such a high current because once the set temp is reached, it will start to significantly reduce the current to just enough to maintain the temp.

So to your example, yes it will take that 16A (or more if you let it by setting the wattage high enough) but very likely only for a short while till it reaches the by you set temp. Very likely around or below 10A will be more than enough to sustain the temp set.

 

[WharfRat1976]

Mind blown[emoji133]

 

[greasegizzard]

Unfortunately, not all TC mods let you set the max watts do they? That should be a feature on all of them.

 

[Nikea Tiber]

I'd say all the common TC mods let you set the max fire wattage. Yihi chips call it joules, but watts x seconds = joules, so unless you can speed up or slow down time, it's watts.
It is still important to consider CDR, but as Eitje mentioned, your mod probably isn't going to fire at your set max wattage for long.
This isn't super-helpful, but if your mod can fire ti or SS (recommended), switch to it. Ni200 is a pain in the neck.

 

[daveid777]

As has been repeated a lot lately, regulated devices require different math for determining the amps drawn from the battery. It is wattage/battery voltage, resistance does not factor. So, what wattage are you running? As a general rule (to stay under cdr values) a 20amp cell can safely output around 60 watts on a regulated device, as 60W/3.2V = 18.75A (3.2 is used as a typical low-voltage cutoff point).

 

[fenderstrat]

This is all fine and dandy but I'm curious as to why vapers concern themselves with the CDR so much when 99.99% of the time we are pulsing the batts.The CDR almost never even comes into play.

 

[daveid777]

This is all fine and dandy but I'm curious as to why vapers concern themselves with the CDR so much when 99.99% of the time we are pulsing the batts.The CDR almost never even comes into play.

Because there are no clear designations as to pulse period, rest between pulses, or ambient temperature.

 

[fenderstrat]

ya know I noticed that.almost all lipos have a burst rating.But almost no 18650 have a burst rating.yet as vaping grows bigger more 18650 are used for vaping and getting used by mostly burst.Its time manufacturers of 18650 stated giving TRUE and accurate burst ratings,so we have some useable info

 

[TheJakeBailey]

But overall, battery usage for vaping is a tiny fraction of what these batteries are used for. Some like Sony go so far as to say that they are NOT intended for our application at all.