Please help me to understand.

[Johnnycloud]

Okay so I just recently bought the sigelei 100w. I put on my little boy rda with dual 26g parallel running @ .38 ohms and turned the wattage up to 75. How is this setup blowing clouds just as big if not bigger than my mech with a .12 ohm build using 24g dual parallel on my darkhorse? The surface area is about the same since the 24g used less wraps. According to my calculator the coil build running at .12 is using 145w with a full battery. My wicking technique is the same and the airflow through both rdas are near the same. What am I not understanding? I figured the lower resistance and higher wattage build would cream the other? What factor am I missing here? The only other thing I see that is changed is the voltage. The sigelei is using 5.2 volts and a full charged battery is about 4.2, is that what is making the difference here or something else? Thanks.

 

[readeuler]

I bet with the mech you're seeing a pretty large "battery sag", for lack of a better term. With my 0.35 ohm set-ups, I tend to lose a few tenths of a volt (like from 3.8 to around 3.5) if I measure the voltage at the RDA posts.

It gets more pronounced, as I understand, the more current there is, hence at lower resistances. I don't understand the full mechanics, unfortunately, nor how a regulated device is better here, other than potentially needing less current.

 

[SweeneyTodd79]

Mech mods use what the battery can push, natively.

As your battery:
1) discharges
2) goes through power cycles and loses some of it's fitness (over time they can drop in what they will push out)
3) gains or loses its memory
4) heats up (temp does effect how much poer hey can push)

It can degrade performance, ever so slightly, but repetetivley over time.

A VV mod takes what the battery(s) give it and scrub that power to ensure the output you are asking for.

when talking about all the vaping math, you also have to realize that the closer you are to 0.0, the bigger and bigger small changes in the numbers become because of how electricity works...

On the plus side.... your Sigelei box is living up to its hype?

 

[Johnnycloud]

Thanks for the info. Yes this little box is great. I was a little worried because I do like to build my coils pretty low and the sigelei can only handle .15 or higher resistance and when learning that my mech was pushing 145w and I would only have 100 to toy with I figured it was gonna be weak. Not the case, this thing holds its own against any of my mechs. The wattage and voltage never change unless I want it to. I think my mechs are getting lonely as the sigelei has been my go to for the last 4 days. Thanks again and any other advice or info is welcome.
Merry Yule and blessed be!

 

[Asbestos4004]

the cool thing about regulated mods like the sigelei is you can build 1.5 ohm coils and accomplish the same thing. I like mechs and low ohm builds....but these box mods give alot of versatility. My Sigelei 100 has a Tugboat with a 1.4 ohm build in it...its a fantastic vape. I'm running a Marquis on a HexOhm V2 with a .4 ohm build in it. I'm liking the boxes these days....lots of build options.

 

[novamatt]

Yeah, a lot of people are surprised at the difference with the regulated mods. The next thing to try is throw a .6-ish om build on there with more surface area and play around with it. As long as you stay at or under .72, you can use the full 100 watt range, and the extra surface area will give you more vapor and flavor at lower settings. I've got a 60 watt mod that can push the whole range at 1.5 ohms and I run my coils in the 1.3 - 1.5 range.

 

[edyle]

Thanks for the info. Yes this little box is great. I was a little worried because I do like to build my coils pretty low and the sigelei can only handle .15 or higher resistance and when learning that my mech was pushing 145w and I would only have 100 to toy with I figured it was gonna be weak. Not the case, this thing holds its own against any of my mechs. The wattage and voltage never change unless I want it to. I think my mechs are getting lonely as the sigelei has been my go to for the last 4 days. Thanks again and any other advice or info is welcome.
Merry Yule and blessed be!

That's the second time you said that your 'mech' was pushing 145w.
As readeul pointed out, you have battery sag; or voltage drop.

No your 'mech' was not pushing 145watts, in fact I bet it was putting out half that.
To find out you need to check the voltage under load with a multimeter, not just use "4.2" volts in your calculation.
Your actually volage under load with a 0.12 ohm coil on a mech is probably more like 3 volts. 3x3/0.12= 75 watts

 

[Johnnycloud]

Will check it out, the only reason I say 145w is because I have nothing else to go on and didn't think the drop would be cut in half as I am using new batteries and counting the battery at full charge. But yeah I'll have to do some more research as I figured maybe 10 watts of drop or so, I just didn't know it could be that much. Thanks for giving me something to look into and thanks for all the input from everyone.

 

[Johnnycloud]

Hey, and be easy on me, lol. Although I am not all that new to vaping I am still new to the science of electricity and looking to learn which is why I am asking questions. In the statement "when I learned my mech was pushing 145w" I should have said "when I thought my mech was pushing 145w" the point of the statement however was not how much the mech was putting out but that I thought I would be disappointed with only having 100w to work with.

 

[edyle]

Will check it out, the only reason I say 145w is because I have nothing else to go on and didn't think the drop would be cut in half as I am using new batteries and counting the battery at full charge. But yeah I'll have to do some more research as I figured maybe 10 watts of drop or so, I just didn't know it could be that much. Thanks for giving me something to look into and thanks for all the input from everyone.

As readuler also said, the lower the resistance coil that you use the bigger the voltage drop.
A 0.1 ohm resistance of a mod itself isn't unusual, so if you use a 0.1 ohm coil, can give you a 50% loss - half the power being used to push high current through the mod itself and the other half to push through the coil.

An example of a mech mod with a 0.15 ohm resistance can be found here
iTaste ARACHNID

Working current:
The iTaste ARACHNID working current = 4.2/（R+0.15），if you use a 0.45Ohm atomizer, make sure your battery minimum working current more than 7A 4.2/（0.45+0.15）。

 

[edyle]

Hey, and be easy on me, lol. Although I am not all that new to vaping I am still new to the science of electricity and looking to learn which is why I am asking questions. In the statement "when I learned my mech was pushing 145w" I should have said "when I thought my mech was pushing 145w" the point of the statement however was not how much the mech was putting out but that I thought I would be disappointed with only having 100w to work with.

The written word has no tone of voice.

I used to teach physics so when talking electricity I dunno how much that might contribute to the apparent tone of my statements.

 

[Johnnycloud]

Wow that's crazy! See this is why I ask. Now I can share this info. Thanks again and any additional info is welcomed.

 

[Johnnycloud]

Ah I see, I was getting a lecture haha. No I really do appreciate all the advice. It's easy to make a coil a certain ohm and slap it on a device but understanding how and why it does what it does is a monster in itself. I'm enjoying the journey though. Thanks again.

 

[readeuler]

I used to teach talk about physics to rooms full of blank stares so when talking electricity I dunno how much that might contribute to the apparent tone of my statements.

If your experience was anything like mine (math), I fixed that for you.

 

[Plooom]

Another happy customer lol

 

[Johnnycloud]

Great! It's all coming back to haunt me! My math teacher and science teacher was one in the same and we didn't get along very well. In fact I thew my book at him in both of his classes and was kicked out. This is a horrible experience! Haha just kidding. Both of you have proved to be better teachers than him already. I actually learned something from you guys. Thank you both. I'm understanding now. Case closed.

 

[edyle]

If your experience was anything like mine (math), I fixed that for you.

lol; yeah, my eyes were kind of opened when one time I happened to end up at the home of one of my students, and from talking to him I realised he had a hard time understanding me in the classroom because he was so accustomed to local dialect and didn't really understand proper English grammar. Sometimes you gotta watch for those blank stares and pick your choice of slang to try explaining.

 

[SweeneyTodd79]

We all learn different.

I was a jornalism major, which means I write in a pretty formalized format unless I'm just shooting from the hip or leaving a one sentence response.

Most times people here aren't trying to be preachy, and off of the 'new member' board they, I, forget that not everyone walks in with the same knowledge set.

 

[beckdg]

I bet with the mech you're seeing a pretty large "battery sag", for lack of a better term. With my 0.35 ohm set-ups, I tend to lose a few tenths of a volt (like from 3.8 to around 3.5) if I measure the voltage at the RDA posts.

It gets more pronounced, as I understand, the more current there is, hence at lower resistances. I don't understand the full mechanics, unfortunately, nor how a regulated device is better here, other than potentially needing less current.

this

and this...

That's the second time you said that your 'mech' was pushing 145w.
As readeul pointed out, you have battery sag; or voltage drop.


No your 'mech' was not pushing 145watts, in fact I bet it was putting out half that.
To find out you need to check the voltage under load with a multimeter, not just use "4.2" volts in your calculation.
Your actually volage under load with a 0.12 ohm coil on a mech is probably more like 3 volts. 3x3/0.12= 75 watts

As readuler also said, the lower the resistance coil that you use the bigger the voltage drop.
A 0.1 ohm resistance of a mod itself isn't unusual, so if you use a 0.1 ohm coil, can give you a 50% loss - half the power being used to push high current through the mod itself and the other half to push through the coil.


An example of a mech mod with a 0.15 ohm resistance can be found here
iTaste ARACHNID

plus the 24 Ga build has much more mass to heat up than a 26Ga build with equal surface area.

 

[Johnnycloud]

Okay, since there are good knowledgeable people on this thread I have another issue concerning electricity however I believe it is the mod itself but maybe you guys can offer some solution. I have a Panzer Blackhawk mod that I believe has a massive voltage drop. I have used the same rdas on several different mods and have had no issues. When I put any of the rdas on the Panzer they only fire with about half of the power. I checked all pins and insulators and everything is rock solid. I have read in past forums that a lot of panzers have dropped voltage caused by the threads. I assume this is the problem however I have no idea how to correct this. There is a certain part on the mod (where there are treads) that heat up quite a bit while the rest of the mod is cool. I believe these are the threads causing the issue but do not have a clue how to fix it. Any suggestions?