when most people start learning to shoot guns, they learn with .22 or a 38... your friend handed you a S&W 500 magnum.... and did he tell you that it "kicks"?? 
First time building a coil, help?
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shop did a bad job on buildng that coil, even worse is that they didnt give you any informations, build tutorials, youtube links or whatsoever. What about your friend? Does he know about the danger of maximum current that can flow safely?
Subohm is basically vaping on coils, which have resistance below 1 ohm. Extreme subohming is at 0.05!-0.2 ohm imo.
Subohm is basically vaping on coils, which have resistance below 1 ohm. Extreme subohming is at 0.05!-0.2 ohm imo.
I never asked him, because i didn't know i was subohm vaping. Since he handed me the k100 itself and i just had to buy the LG battery and the igo w to replace my protank 2 ego setup since it broke. i figure i made a bad call by not asking questions about the coils and everything, now.
Live and Learn
when someone builds a coil for you...
ask them if its safe for your battery and show them your battery
ask them what ohms it is
ask them to test the ohms on a meter
doesnt hurt to ask
when someone builds a coil for you...
ask them if its safe for your battery and show them your battery
ask them what ohms it is
ask them to test the ohms on a meter
doesnt hurt to ask
Depending on where the batteries were purchased (lots of counterfeits out there in the world of batteries), and assuming that se us18650vtc4 is a Sony, it can handle a 0.4Ω coil with room to spare. The LGDBHE21865 may be capable, but I didn't dig very deep.
Baditude has a couple of blog entries worth reading.
Deeper Understanding of Mod Batteries - Part I
Deeper Understanding of Mod Batteries - Part II
yeah, the SE is a sony battery and i got it from a vape shop; i'm not saying it makes it a definite non-counterfeit, just figured i'd toss that bit of info there. I got the LG from a different shop, since i couldn't find the battery at the time. When i bought the LG, i was told that LG battery was their best one for subohm vaping, but i don't remember the details at the moment.
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The Sony VTC line of batteries is very good, many say the best on the market at the moment. The difference between the VTC 3, 4, & 5 is just capacity; all of them are 30 amp continuous discharge.
The cliff notes on battery safety for you:
1. Take the maximum continuous discharge for your battery: 30 amp
2. Assume a 4.2 volt discharge (not realistic but gives safety margin) for a single battery
3. Enter both into an Ohm's Law Calculator
The resistance that gets generated (0.14 ohms) is the lowest ohms you can safely vape with that battery. Always make sure your builds have higher resistance than that.
If you can't find the max discharge for your battery, post in the forums. Someone should recognize it and might know. If not, don't buy the battery and stick to ones that you know are safe
Ohmmeters are cheap ($10 - $20). I have the Omnitester and it is great for checking voltage drop from the mod, but only has 0.1 ohm resolution. That's fine for me, because I have a good idea of what it should be so I'm mostly looking for bigger problems like the ohms being way off, shorts, or open/broken circuits. You might be better off with a cheaper ohms only unit with 0.01 ohm resolution.
In the long run, it's better to buy some wire online ($5 - $9 per 100') and start building your own. It is pretty easy and there are a lot of instructables out there for it. There is nothing wrong with sub-ohming when you start out with rebuildables; you just have to educate yourself and be safe about it.
Once you start making your own coils, you will have a better feel for what the output is going to be. It's important to look at the resistance of the wire your using, the number or wraps (length of wire), and the inner diameter (ID) of the coil. The pic above is ~0.5 ohm from dual micro-coils with 12 wraps each of 26 AWG on a 2 mm bit.
Using multiple coils in parallel splits the resistance among the coils. Each of the above coils are 1 ohm, so 2 in parallel is 0.5 ohms for the circuit.
Good luck and happy vaping
The cliff notes on battery safety for you:
1. Take the maximum continuous discharge for your battery: 30 amp
2. Assume a 4.2 volt discharge (not realistic but gives safety margin) for a single battery
3. Enter both into an Ohm's Law Calculator
The resistance that gets generated (0.14 ohms) is the lowest ohms you can safely vape with that battery. Always make sure your builds have higher resistance than that.
If you can't find the max discharge for your battery, post in the forums. Someone should recognize it and might know. If not, don't buy the battery and stick to ones that you know are safe
Ohmmeters are cheap ($10 - $20). I have the Omnitester and it is great for checking voltage drop from the mod, but only has 0.1 ohm resolution. That's fine for me, because I have a good idea of what it should be so I'm mostly looking for bigger problems like the ohms being way off, shorts, or open/broken circuits. You might be better off with a cheaper ohms only unit with 0.01 ohm resolution.
In the long run, it's better to buy some wire online ($5 - $9 per 100') and start building your own. It is pretty easy and there are a lot of instructables out there for it. There is nothing wrong with sub-ohming when you start out with rebuildables; you just have to educate yourself and be safe about it.
Once you start making your own coils, you will have a better feel for what the output is going to be. It's important to look at the resistance of the wire your using, the number or wraps (length of wire), and the inner diameter (ID) of the coil. The pic above is ~0.5 ohm from dual micro-coils with 12 wraps each of 26 AWG on a 2 mm bit.
Using multiple coils in parallel splits the resistance among the coils. Each of the above coils are 1 ohm, so 2 in parallel is 0.5 ohms for the circuit.
Good luck and happy vaping
Anything under 1.0 ohms is sub ohm vaping the fact that your friend at the vape shop built that for you knowing you had no knowledge of your setup or about ohms etc is pretty sketchy from what I've read batteries can blow up from sub ohm builds doesn't happen often but it happens.
I'm sure others will give you some advice on your build. So I will just say this: Please do not build any new coil without getting an ohm checker/multimeter first. It's important, especially as a beginner to rebuildables, that you have the proper equipment for rebuilding so you do not hurt yourself.
i had one last question. After i get the ohms reader, what kind of technique would i need to learn or use, or what kind of wire is recommended to raise the resistance on my coils? to above subohm... would i still be able to learn how to make microcoils at higher resistance?
Search for "vaping coil calculator"and you'll find sites and stand alone apps that will give you a reasonable approximation of resistance for various size wire and wraps of a coil.
Don't take anything for granted. Always test with a meter before vaping.
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