Questions after some search

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brunofd

New Member
Sep 10, 2014
4
0
Portugal
Hi everyone,


I'm new to the vaping world and after reading some post about the mini protank 2 i have some questions...
I saw a table mentioning that the perfect watts to produce vapor are between 3.5 and 8.5. If so, how can people vape at 100+ watts?


About batteries, how can i find the amp limit off my batterie (ego 650mAh)? From what i've seen, in mods they use the c ratio to calc the limit amps.


About liquids. The more VG the better right? Then why do they use PG? Cheaper? Also how can we improve the taste of the vapor? Better silica/cottom? Vertical coils?


I'll try to rebuild the coils of my mini protank 2 any suggestions? I already have 32 gauge kanthal and 2mm silica.


Thanks for the attention
 

joesquid

Ultra Member
ECF Veteran
Verified Member
Apr 16, 2014
1,616
743
Chesapeake, Va
Hi everyone,


I'm new to the vaping world and after reading some post about the mini protank 2 i have some questions...
I saw a table mentioning that the perfect watts to produce vapor are between 3.5 and 8.5. If so, how can people vape at 100+ watts? To vape at higher wattages you need to have ALOT of air flow to keep from burning juice. They usually use a dripper


About batteries, how can i find the amp limit off my batterie (ego 650mAh)? From what i've seen, in mods they use the c ratio to calc the limit amps.I'l leave this to one of the battery experts. Bad?


About liquids. The more VG the better right? Then why do they use PG? Cheaper? Also how can we improve the taste of the vapor? Better silica/cottom? Vertical coils? VG or PG is personal choice. II use 50/50. Taste is effected by many thing, heat, wicking, air flow, amount of PG and of course juice.


I'll try to rebuild the coils of my mini protank 2 any suggestions? I already have 32 gauge kanthal and 2mm silica. Suggest looking it up on youtube but in general, 32ga will work. Use a 1/16 drill bit. I'd use organic cotton instead of the silica though


Thanks for the attention


Hope this helps
 

amtseung

Senior Member
Sep 22, 2014
202
85
California
Hold your horses man, I think you're getting way to far ahead of yourself.

To address your first point, vaping at 100+ watts is when people vape sub-ohm, commonly on a dripping atomizer. To vape sub-ohm means to build a coil under 1ohm resistance. I don't know how the "1" was lost in "sub-1-ohm", but I guess the term stuck.

On to your second point. The batteries I believe you are talking about, the ones with relevant amp limits and what not, are standardized removeable cells, commonly seen in the sizes 18650 and 18350, although there are other sizes in between. The ego batteries should have their amp rating and such listed by the manufacturer, although It is likely that the intended use is not above 10A or so, as they were intended to be used with pre-made clearomizers at roughly 2ohms. A little twiddling with Ohm's Law should determine how many amps that would be exactly.

About liquids, the more VG you have in it does not dictate a better vape. For a smaller clearomizer such as a protank, ego, or even some nautilus builds, PG is used to thin out the juice so that the wicking material can actually feed the e-liquid to the actual coil fast enough. Thick juices laden with VG wick much slower, which is why they burn out clearomizers and higher-resistance devices like dropping flies. They also need a much higher heat to vaporize, adding to the problem. However, with builds around 1.5 ohms and lower, more and more vg can be used to thicken up the juice and help increase vapor production without unnecessary stress or harm to your device.

Speaking of coil builds, and particularly having had much experience rebuilding protanks, 1.) they are a royal pita, and 2.) there is essentially only one way to build a coil that'll fit into the coil head shroud. There isn't much variation to be had there. If you really want to rebuild it, the best way is to see how the original came out and do it exactly like that. If you try and get too fancy, It is likely that your coil will either a. not fit, b. short against the sides of the shroud, or c. set off the protection circuit in your battery, and then you'll have to start all over again. Rebuilding a protank is no small feat, and I'm glad you're up for the challenge.

If you're really into rebuilding, I would recommend getting a dripping atomizer and appropriate mechanical or vv/vw (variable voltage/variable wattage) device. A dripping atomizer would give you the space to work on trying new coil builds and various wicking techniques, and a small ego battery would be unable to power such a device, making a more powerful power supply necessary.

Most people who don't like the rebuildable dripping atomizers (RDA) often complain that they want a device that will work on command, requires no fiddling, and produces just enough vapor to get their nicotine hit and that's enough for them. For people like me, and at least as far as you've said, you as well, it's more of a hobbyist thing, rebuilding and such, twiddling, tweaking, making adjustments, trying new things, and experimenting to get the biggest clouds and/or best flavour.

Best of luck to you, let me know if you have more questions. The world of vaping is very, very big.
 

brunofd

New Member
Sep 10, 2014
4
0
Portugal
Thank you so much for the answer!!!

I understand the sub-ohm term, and i know that its used in mods. But i really cant find the amp limit anywhere :| I found in another post that for the ego twist its about 3A. If so, at 3.7V the minimun resistance would be like 1,2(3) right?

Ok, now i now why they use it :D
So 50/50 liquid is ok for mpt2? Or its better a 70(pg)/30(vg)? And for a dual coil like mpt3? kangertech t2?

Well, i hope i'm up for the challenge of rebuilding it, still waiting for the kanthal and silica.
Aboul organic boil, should i boil it?

Another big doubt i have its Dual coils... In a dual coil of 1.5ohm we have two 3 ohm resistanve right? At 4.2V its like 11.76W i guess, so each 3ohm coil is generating half of the 11,76W? So we only use duals and quads etc at higher voltage right? (for my 3.7V its useless right? :D)

I want to rebuild but i thought it would be better if i start by rebuilding the mpt2, to get some exp. Then i'll get a mod and a rda for sure ;)
I enjoy vaping, i've quited smoking 7 years ago, and i started vaping a month ago at 0% nico just for fun (my wife started vaping 11%). Its a big world, really interesting and with a really nice comunity for what i've seen so far ;)

Thanks again
 

amtseung

Senior Member
Sep 22, 2014
202
85
California
Following Ohm's Law, if V=IR, then 3.7=3*R, which is 1.23ohms. Not a lot.

A higher vg blend will result in a smoother hit. No one liquid is designed for any one device. Trial and error is the way forward. I don't think anyone has any definitive answer.

In a dual coil, if one coil were 1.5ohms, two would theoretically half that, resulting in a combined 0.75 ohms. Remember, for resistors in series, you add the resistances together, and with resistors in parallel, you add up all the reciprocals of the resistances, so 1/R1 + 1/R2 so on and so forth, and take the reciprocal of that. Continuing with your previous example, at 3.7V and 0.75ohms, 3.7 = I*0.75, which means 4.93 Amps, and unscientifically rounded up, is approximately 5A. Voltage doesn't dictate what kind of resistances you build your coil at, it's the continuous amp draw limit of your batteries. Duals, triples, and quad coil set ups only really work in a mod where it'll fit. That's still the first criterium. Next would be if you have enough airflow, but let's leave that for another day, shall we?

You don't earn exp by rebuilding a protank. This isn't an rpg, nor a video game. There's no need to grind levels to vape. :vapor:
 
Last edited:

brunofd

New Member
Sep 10, 2014
4
0
Portugal
Following Ohm's Law, if V=IR, then 3.7=3*R, which is 1.23ohms. Not a lot.

A higher vg blend will result in a smoother hit. No one liquid is designed for any one device. Trial and error is the way forward. I don't think anyone has any definitive answer. True, starting to realise that

In a dual coil, if one coil were 1.5ohms, two would theoretically half that, resulting in a combined 0.75 ohms. Remember, for resistors in series, you add the resistances together, and with resistors in parallel, you add up all the reciprocals of the resistances, so 1/R1 + 1/R2 so on and so forth, and take the reciprocal of that. Continuing with your previous example, at 3.7V and 0.75ohms, 3.7 = I*0.75, which means 4.93 Amps, and unscientifically rounded up, is approximately 5A. Voltage doesn't dictate what kind of resistances you build your coil at, it's the continuous amp draw limit of your batteries. Duals, triples, and quad coil set ups only really work in a mod where it'll fit. That's still the first criterium. Next would be if you have enough airflow, but let's leave that for another day, shall we?

You don't earn exp by rebuilding a protank. This isn't an rpg, nor a video game. There's no need to grind levels to vape. :vapor:
hahaha nice ;)

I see loooots of trial and errorssssssssss in my future :D

Thank you ;)
 
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