blueaussie

LR CARTO'S VS HIGH RES. CARTO'S What are the pro's and cons of each, I do know that on LR it is not recommended to use on standard 650-900 mah's.

It seems that all the craze is for LR's because vendors seem to run out of those very often.

Thanks for your feedback everybody.

I am not independently wealthy yet so I have to go to work, ARRG!

berger

well the short version is LR (low resistance) creates a hotter coil through passing more current (amperage). the definition of what LR ohms are tends to be 2.0 ohm and below..IMO
HR (high resistance) typically is designed for Higher voltages...early in the life of e-cigs some would stack batts in simple devices pushing 6-8V. That created a need for higher ohm type cartos so they wouldn't burn out the coils in very short periods..I guess the definition of those would be 3 ohms and above again IMO.
That leaves us with the standard resistance cartos broadly somewhere around about 2.5 ohms for typical 3.7V devices as originally designed single battery devices that are the main stay of the market.
again it all comes down to wattage or actual power output at the coils, all other variables assumed equal.
In general if your stuff is too hot...go slightly higher ohms...
if its too cool...go lower ohms
however there are limitations in how much current the batteries and devices can handle so you cant just drop to 0.5 ohm cartos to run on your ego...that device will either burn out from more amperage then its designed to handle or if your luckier determine it to be a short and just not function
If you play around with this entering the ohms and the voltage you can better see the relationships involved with changes in resistance

wendallb

I am using boge lr 2.0-2.4 cartos on my 900mah ego batteries with no issues and they do work very well..

tek

For me its also about the batts.. As in, my sweet spot is approx 12 watts, how i get there i suppose does not matter... but in reality it does..

lets say i want to try to get close to that on a single batt mod, i would need a specific carto rated at a coil ohms of 1.14 ohms, and i dont see any one carrying any thing lower then 1.5 typ, but at that voltage of say 3.7 and 1.14 ohms i would need a batt to run 3.24 amps, draining any batt real quick..

Now lets move up to say a 2 ohm boge..
and a 5 volt device
That would give me 12.5 watts at a cost of 2.5 amps.. Not bad but i can do a lil better i think to keep my batts going a lil longer..

say 6 volts and a 3 ohm boge, that would give me 12 watts, 2 amps, and that is good.. but again there is a way to do better...

If i were to do 7.4 volts and have a 4.5 ohm carto, that would give me 12.16 watts, and 1.6 amps of drain.. Now were talking, that should let have at least a full day at say 2 14500s 900 mah..

Now the reason i did this out, is , that the higher ohms i went, the higher voltage i need to get the same watts <aka out put heat> . I admit i like a warm vape, and i find it here at 12 watts. But the less amps i would need to run my unit. <yea yea unit> This means longer batt life from less draw, and less over all damage to the cell..

ps: The numbers i used were rounded and theoretical to what were talking about and this is not ment to say absoultly what you should have or use. This is just for the purposes of trying to get a lil knowledge out there threw the use of math..lol

berger

so the current is the batt killer or because your staking you've divided the loading?

tek

its because with higher voltage you need less current to do the same thing, so the draw off the batts is less.

Shekinahsgroom

Correct me if I'm wrong, its been about 25 years...

But from I remember in electronics class, voltage is the force that pushes the current...correct?

Higher voltage means that the current can be "pushed" faster and over greater distances...right?

berger

Is that like one of those if a tree falls in the forest and nobody is there to hear it questions?...

tek

yes. i had a rather cool reply posted, or at least i thought i did a while ago lol.. basically yes..

Steampunk

They always described it as a "river", with Voltage the FORCE of the water, and current the water itself.

blueaussie

Man thanks for the feedback, this is all starting to make sense to the point I don't think I will be wasting as much juice and cartos.
Thanks everybody, I appreciate it.