if i have a dual coil sitting at around 0.25 ohms and i have a fully charged 18650 4.2V battery and it has a max continuous discharge of 20A, does that mean im safe? the ohm's calculator shows 16.8A. so as long as my build doesnt go above 20A im good right?
im confused with this quick vape question...
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Should be ok, however if that coil is off by even .05, you'll be pulling 21 amps, so it might be better -- safer -- to stay in .3 territory. I've seen variances of .1 and .2 a LOT, so a variance of .05 is entirely possible.
Andria
This was my thought... if he's just using a mech to sub-ohm, then this .25 build could become a massive problem if that reading is off by even .05, or if anything changes -- the head wiggles -- a post wiggles -- a screw wiggles -- literally ANYTHING, because that .05 isn't much of a safety margin! But if he's using a vv/vw, then it wouldn't be a straight 4.2, it could be less, which would give more of a safety margin.
I'm wondering what ohm reader would even measure to 0.00 -- my omnitester only does 0.0, and all my vw mods the same.
Andria
The First thing I would Ask myself is How Accurate is the .25 Ohm Measurement that I made?
I cringe when I see people creepy up on the Bleeding Edge of what a Battery is Supposed to be able to do all based on some $7.00 Fasttech Ohm Checker.
I would Dial Back the Ohms.
Is there a Huge Difference in Taste from .25 Ohms to .4 Ohms? Because there is a Huge Difference in Amps.
Also at 16.5 amps you are pushing that battery to roughly 80% of what it can handle (forgive me if that's a bit off math isnt my best area) but when discharging a battery at that much you are severely depleting the life of that battery. For me personally I never like to push my batteries past 50% of what they can handle as it keeps them working righ tmuch longer, I also never let them drain past 40% of their capacity.
You asked if that is safe? Mathematically and assuming your ohm reader is exactly right with no fluctuations then yes technically. In my opinion no it isnt safe. I would either build higher resistances, get a better battery. Or get a regulated mod. With regulated mods able to build down to .1 ohms (not that I ever had) and even having the capacity of having dual batteries, I see no reason to not get one for cloud chasing except for preference. Now if you don't like regulated, that's cool to each their own, mech's have their place, just get a better battery if you are going to do it and take better care of your batteries so they have a long healthy life
You asked if that is safe? Mathematically and assuming your ohm reader is exactly right with no fluctuations then yes technically. In my opinion no it isnt safe. I would either build higher resistances, get a better battery. Or get a regulated mod. With regulated mods able to build down to .1 ohms (not that I ever had) and even having the capacity of having dual batteries, I see no reason to not get one for cloud chasing except for preference. Now if you don't like regulated, that's cool to each their own, mech's have their place, just get a better battery if you are going to do it and take better care of your batteries so they have a long healthy life
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