Well now I’m using the coils I have in the picture it’s .11-.12 ohms I’m vaping at 65w atm the continuous voltage discharge level is roughly 2.8 volts so I know that’s safe cause my batteries are 20A 2500mah and 3.6 volts and I have 2 batteries in my mod so I can go up to 6v before it really starts to get dangerous I also have a resistance protector so it can’t go under or over the min and max and an internal temp protection so it can’t overheat it also won’t let you fire the mod if there’s a short in the atomizer whether it’s the coil or connector. So I feel pretty safe where I’m at right now in theory I could push it to 130w and still only be at 5.4/5.6vs since the wattage will of doubled so I can only assume the voltage would work the same since I don’t know for sure.
Sounds like you've done some reading there, good for you. Sometimes there are misconceptions posted however, so let me clarify a few things from an electrical engineer's point of view.
1. Your typical regulated mod has no idea of how much current your batteries are discharging, nor does it know the battery temperature. Therefore its up to YOU to pick the right batteries for the power you are vaping at. The mod you are usings "protections" wont save you from running 10A rated batteries at maximum power of your mod, and those batteries will overheat. Mods "overheat protection" protects the power electronics in the mod, not your batteries, the mod doesn't measure battery temperature.
2. Safe power levels for batteries are based on the battery voltage and current, not the mod output voltage. A good formula to use is:
Power per battery (W) = I x V x. Eff. (=Battery Current in Amps x Battery Cuttoff Voltage x Mod Efficiency, typically 0.9, but I've seen anything from 0.85 to 0.95).
So for a 20 Amp continuous battery (suggest one tested by Mooch, such as the LG HG2's I use), used on a Mod with a 3.2V battery voltage cuttoff:
Max safe vaping Power = 20A x 3.2V x 0.9eff = 57.6W, or roughly 60W.
For dual batteries, that would be 60W x 2 = 120W max safe vaping power.
Which agrees with the recommendations in this excellent video from Mooch on Regulated Mod and Battery Safety (thanks to @
Carambrda for this link)
:
In the video linked above, Mooch brings up a great point about not trusting a mod's protections to save you, and I reiterate that a regulated mod offers NO protection from you using a too low rated current battery in your mod, that is your responsibility.
In the video, at one point Mooch states that the coil resistance doesn't matter on a regulated mod, I'm quite sure his statement is in context of doing the calculations which is true, however coil resistance DOES matter on a regulated mod in the sense that you should never go below the mod manufacturers minimum resistance specs. While a regulated mod typically has short circuit protection and will limit your power output (or shutoff if resistance is too low), why rely on that? As mooch states in the videos, mods can fail, protections can fail. Always adhere to the specs given in your mod manual.
Of course, this is me the conservative engineer here so my recommendation is to vape at <=80% of the maximum continuous current. (16A for a 20A continuous battery, ~45W at a 3.2 voltage) This allows for aging, manufacturing tolerances, enclosure of your battery in the mod, etc. Others can disagree, Mooch included, but I get to give my own engineering recommendation.
In summary, as far as battery safety goes, your typical regulated mod is clueless as to what current is being drawing from your battery, all it can do is cut off on low battery voltage, so selecting a battery with a continuous current rating for safe vaping at the power you vape at is all up to you, .
So I have a dual coil build, I used 316E SS triple fused Clapton wire. I think it’s 26g/24g or 28g/26g but I’m not completely sure since I don’t have the package it came in. The only thing that concerns me about this build is that the resistance level is .11ohms and my mod a (smok majesty 225w) is rated to handle a minimum of .10ohms so this is cutting it very close. I think it’d be alright and save to vape it but I just wanted to see what other people think and get some other opinions. I added some pictures, it’s nothin fancy or crazy and it’s only got 2.5-3 wraps cause i didn’t cut it long enough and ran out of wire, I wanted 4-6 wraps which would’ve gave me round about .16 ohms but you can only do as many wraps as the wire will allow and I didn’t want to waste the wire so I just decided to use the coils anyways. I also stuffed the shit out of it with cotton because I didn’t want to have the wicks enter the tank but rather sit on the top because when the wicks drop into the tank they suck up so much juice that you never end up getting vape or getting back unless you squeeze it out of the cotton when you’re rewicking a build.
. The discoloration is from the coils heating up and cooling down so I could get the ramp up just right even though they were nearly perfect right from the start I just felt they needed a little tuning.
