Mech mods: voltages

[Tivaliman]

So, is this right?
On mech mods. depending on what coils you build and what ohms it's readings. The ohms determines what current it's drawing ? What determines the wattages? Is the volts set to a specific level, on each of the different mods or are they all the same?
Is there any differences from using dual 18650 and a single 18650, considering the batteries were the same?

I've done some studying on the ohms law, still I thought, by understanding it using an unregulated mod as an example (I've not purchased any btw) I'll be able to get a clearer picture. I've read some answers posted by other members on another part of the forum. Hmm...

 

[Rule62]

Short answer is yes; the resistance of the build will determine the watts and the amp draw. However, if the mod uses more than one battery, the configuration will also determine the voltage, amps, and watts. If the mod arranges the batteries in series, the voltage is multiplied by the number of the batteries. For example, two 3.7 volt batteries in series will provide 7.4 volts. Two 3.7 volt batteries arranged in parallel will still provide 3.7 volts; but the storage (mAh) will double.

 

[Tivaliman]

Short answer is yes; the resistance of the build will determine the watts and the amp draw. However, if the mod uses more than one battery, the configuration will also determine the voltage, amps, and watts. If the mod arranges the batteries in series, the voltage is multiplied by the number of the batteries. For example, two 3.7 volt batteries in series will provide 7.4 volts. Two 3.7 volt batteries arranged in parallel will still provide 3.7 volts; but the storage (mAh) will double.

Wow! I'm nearly getting there
I found on some tutorials that, on a noisy cricket, it is recommended to build around about 3-6 ohms. I just understood from that, it is not a good idea to go "super" low on any unregulated mod eg. Cherry bomber v2 or hex ohm

 

[Bad Ninja]

Wow! I'm nearly getting there
I found on some tutorials that, on a noisy cricket, it is recommended to build around about 3-6 ohms. I just understood from that, it is not a good idea to go "super" low on any unregulated mod eg. Cherry bomber v2 or hex ohm

You should avoid the noisy cricket or any series mechanical mod ubtil you FULLY understand ohms law and how it relates to vaping.

Dont take this the wrong way.
Its not meant to be insulting.

You are not ready to safely use a mechanical mod, much less a series mech.

Check out some of @Baditude 's blogs here on ECF to get started.

Its not difficult, but it is crucial to using the gear safely.

 

[Tivaliman]

You should avoid the noisy cricket or any series mechanical mod ubtil you FULLY understand ohms law and how it relates to vaping.

Dont take this the wrong way.
Its not meant to be insulting.

You are not ready to safely use a mechanical mod, much less a series mech.

Check out some of @Baditude 's blogs here on ECF to get started.

Its not difficult, but it is crucial to using the gear safely.

Haha Thanks mate. I'm not going to... Just yet anyway. Just thinking ahead, also I was checking if my summarization was accurate enough. Obviously I have more learning to do and I yet to build my own coils and have a go.
The tdp article 20 legislation is making me think ahead, I know I have to prepare for the "apocalypse " lol.
So, thanks guys. I get great help as always.
Vape happy, vape safe!
Peace!

 

[Bad Ninja]

Haha Thanks mate. I'm not going to... Just yet anyway. Just thinking ahead, also I was checking if my summarization was accurate enough. Obviously I have more learning to do and I yet to build my own coils and have a go.
The tdp article 20 legislation is making me think ahead, I know I have to prepare for the "apocalypse " lol.
So, thanks guys. I get great help as always.
Vape happy, vape safe!
Peace!

Just keep in mind, buying advanced, dangerous mechanical gear that you dont even underastand how to use safely isnt going to help your situation.

I amost exclusively use mechs, but i fully understand how they work.

 

[Tivaliman]

Just keep in mind, buying advanced, dangerous mechanical gear that you dont even underastand how to use safely isnt going to help your situation.

I amost exclusively use mechs, but i fully understand how they work.

You're absolutely right Bad Ninja. It's easy to laugh issues away. But, not understanding ohms law is dangerous with any electrical devices, if one has to tinker with it. Seriously though, I'm not going to buy advanced gear any time soon!
It's just that I've seen some vape gear that is compliant to the ec rules... Not a fan. Nope. It's because of these tech that is available, I'm still not gone back to cigarettes, whether I have them or not! It's keeping my interest preoccupied.

 

[puffon]

Steam engine made things clearer for me
Battery drain
Using a LG HG2 (know 20amp battery) in a single battery mod
.5 ohm build gives me 58% amp limit head room @4.2 volts
Fully charged at 4.2v gives 35.28 watts
as the battery drains to 3.7v you get 27.38 watts

 

[Tivaliman]

Steam engine made things clearer for me
Battery drain
Using a LG HG2 (know 20amp battery) in a single battery mod
.5 ohm build gives me 58% amp limit head room @4.2 volts
Fully charged at 4.2v gives 35.28 watts
as the battery drains to 3.7v you get 27.38 watts

Yeh... Battery drain, but of course! Which mod is that on?

 

[AzPlumber]

A mechanical mod is unregulated and uses the battery voltage. Voltage and resistance (ohms) determine amperage.

 

[Tivaliman]

A mechanical mod is unregulated and uses the battery voltage. Voltage and resistance (ohms) determine amperage.

I don't have a mech/unregulated mod.
So how will the temperature of the vapes be affected between say, .5 ohms and .2 ohms will it be significant?
I'm sorry if I'm asking too many questions on the same thing. I need to understand it properly.

 

[puffon]

Yeh... Battery drain, but of course! Which mod is that on?

REO
but it would apply to any single battery mech mod

 

[Tivaliman]

REO
but it would apply to any single battery mech mod

Would you say , a single battery mech mods is a good start for someone looking to get started on mech mods?

 

[AzPlumber]

I don't have a mech/unregulated mod.
So how will the temperature of the vapes be affected between say, .5 ohms and .2 ohms will it be significant?
I'm sorry if I'm asking too many questions on the same thing. I need to understand it properly.

Basically lower resistance will be a warmer vape but there are other things that also effect the temperature like air flow, wicking and wire gauge.

 

[Tivaliman]

Basically lower resistance will be a warmer vape but there are other things that also effect the temperature like air flow, wicking and wire gauge.

Thanks, man!

 

[puffon]

Would you say , a single battery mech mods is a good start for someone looking to get started on mech mods?

Yes, I would.

 

[Tivaliman]

Yes, I would.

Great, thanks Puffon!

 

[sonicbomb]

Take the Ninja's advice and stick with a single 18650 tube and master it before you even entertain the idea of a multi battery mechanical device. Not just because you are inexperienced, but also because if you can't get a satisfying vape from a simple setup then complicating it is pointless.

Pick a resistance for your coil/s, you can model this in steam-engine before you even touch a piece of wire. Calculate what wattage this will yield, what the heat-flux will be and how many amps it will draw from a freshly charged battery. Then make sure you are using a battery that has a CDR is excess of the maximum amp draw. You can use Mooch's list of recommended batteries to select an appropriate one.

If you don't want to or can't use steam-engine, you can use the following very simple maths to calculate you wattage and amp draw.

I = amps V = volts R = resistance P = watts

To find the amp draw use I=V/R
Eg. divide 4.2v by 0.5Ω = 8.4 amps

To find the wattage use P=V²/R
Eg. 4.2v multiplied by 4.2v divided by 0.5Ω = 35 watts


Feel free to ask as many questions as you like without prejudice, we/I like answering them.

 

[Tivaliman]

Take the Ninja's advice and stick with a single 18650 tube and master it before you even entertain the idea of a multi battery mechanical device. Not just because you are inexperienced, but also because if you can't get a satisfying vape from a simple setup then complicating it is pointless.

Pick a resistance for your coil/s, you can model this in steam-engine before you even touch a piece of wire. Calculate what wattage this will yield, what the heat-flux will be and how many amps it will draw from a freshly charged battery. Then make sure you are using a battery that has a CDR is excess of the maximum amp draw. You can use Mooch's list of recommended batteries to select an appropriate one.

If you don't want to or can't use steam-engine, you can use the following very simple maths to calculate you wattage and amp draw.

I = amps V = volts R = resistance P = watts

To find the amp draw use I=V/R
Eg. divide 4.2v by 0.5Ω = 8.4 amps

To find the wattage use P=V²/R
Eg. 4.2v multiplied by 4.2v divided by 0.5Ω = 35 watts


Feel free to ask as many questions as you like without prejudice, we/I like answering them.

Thank you sonicbomb, that was very reassuring.

 

[Spazmelda]

Can I .... in here and ask for a dummy's definition of heat flux? I've read some stuff but it is not clicking in my head. I mean, I know it is a measure of watts per (surface?) area, but I'm not sure what that means in practice. Thanks!