Sub Ohm Vs Regulated Wattage device

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Spender1786

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Jan 22, 2015
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Hello

I am newish to vaping. I am trying to understand something that is really for some reason bothering me. I under stand to a degree about sub ohming. But I can see it really only benefiting mech mods. When using a mech mod you cant increase the wattage, but if you use a lower ohm coil you can therefore increase your wattage.....if im wrong please say.

I have a DNA 40 device, And i really cant get why sub ohming on my kanger subtank mini is benefiting me...apart from I can get to the wattage I require with less volts.

One final quiestion, do lower ohm coils use more juice.....if so why. If i was to use a 1.5 ohm coil at say 12 watts, would it use less juice than a 0.5 coil at say 35wats.....also saying that the volts are the same too


P.s Sorry if this in the wrong area :)
 
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93gc40

Vaping Master
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Oct 5, 2014
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You can NOT adjust the wattage or voltage of a Mech Mod. They run at battery voltage ONLY. A lower ohm coil will run at a higher wattage than a high ohm coil at a given voltage. So say you have 3.7 volts available from your battery the only way to change wattage is via coil.

On a regulated mod you are not limited to the wattage provide by the battery and coil, because you can alter the amount of voltage drawn from the battery and via circuitry alter boost or reduce the voltage so that you can take coils of almost any OHM rate feed it voltage to put out the wattage you chose. That 2 ohm coil thats runs at 6 watts on your MECHs 3.7 volts, can be fired on a Regulated mod in theory at ANY voltage/wattage available to the mod. As you change the voltage up and down the output of wattage does the same.
 

MattyTny

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Oct 8, 2013
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Good question to ask for someone new to vaping. Good choice on the DNA40 too. The difference between mechanical and regulated is more than just the obvious fixed voltage on a mechanical. For a mechanical since you work with a fixed voltage (with some voltage drop) you want to build a resistance that will suit your vaping habits, so you can build low for a lot of power, or even higher like 1.2-1.5 for a more of a relaxed vape. As you vape, your battery voltage declines resulting in less power. A regulated can fix the decline by using a consistent power setting. There is more to it though.

Each regulated device has its own chip depending on who makes it with different specifications. The specs are usually available for consumers and generally list the voltage range, wattage range, resistance range, and amp limit. All of that info plays a big part in what you put on top of your device. You can increase wattage to get more out of your vape, but your device will also function the best with a certain resistance range within what it can handle.

For example, your DNA40 can read pretty low, but I believe it also had an amp limit of 16amps. This means if you use very low low resistance, say 0.15ohms, at 40 watts you'll be drawing all 16 amps of current and you'll really tax your battery. I don't believe you can use a resistance that low anyway with kanthal on your DNA40, but it's just an example. Now take another chip like the Yihi SX330 in the Sigelei 150. Sure it can fire 150 watts, but it's only going to give you all 150 when you use a resistance that the device's voltage limit, and amp limit can handle. That being said I cannot fire a 1.0ohm coil at 150, it will top out way before that.

What's nice about your DNA40 is that it can fire its full wattage range with a lot of stuff that you decide to put on it. Obviously stuff at the extreme ends will be a little iffy, but for the most part it's a good device to observe regulated capabilities on. What you want to check out is Steam Engine | free vaping calculators and go to range and select your device. It will give you details about the resistance range and the "sweet spot" resistance for good performance. It's not saying use that resistance, but it's a good estimate of what works well while keeping your battery life in good shape. Also go to the ohms law calculator, you'll see how lower builds use more amps, higher builds on a regulated require more volts for a certain wattage, etc.

I hope some of this helps explain the difference between the mechanical and regulated. I realize I spoke more about regulated devices, but mechanicals are more self explanatory in terms of what they can do. Mechanicals are also a great choice for durability, ease of use, and form factor. Use safe batteries and an ohm reader always.

I want to add this. Mechanical devices are a inexpensive way to get a lot of power. Put in a nice battery like a Sony and you'll have 30amps to work with. You don't want to put on a build that uses all 30a at the fixed voltage because you want a buffer, but you can easily get like 50watts with a 0.33ish build and only draw about 11 or 12 amps with a fresh battery.
 
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