BIG NEWBIE with some questiona

Status
Not open for further replies.

kingja200

Full Member
Jul 16, 2014
26
1
New York
Hi guys I just made an account minutes ago so please forgive me in advance if I made or am going to make any mistakes.

Ok so recently I just got into the world of rebuilding. I have two cartel v2 stillare rda's and they are clones. I have 32g 28g, and also 26g kanthal wire.

I have a variable voltage ego twists but I just bought a vv/ww device (the itaste mvp 2)

whenever I build coils and sub ohm the mvp does not fire the coil but my ego twist will.


first of all a quick question. With my current RDA's and when I dont sub ohm at around 1.2 ohms lets say with 28g kanthal i can get about 25 hits and then I get a burnt taste and vapor production goes down. Is it normal or should i be able to get more hits?



now about what I really wanted to talk about... I want to get into mech mods and sub ohming and all of that so I need some help/advice

i recently ordered two 18650 batteries and they are 20a is that ok and somewhat safe?

I also ordered a panzer mechanical mod clone. For my sub ohming i will be using 26g kanthal wire. Now this is another important question. Does it matter if I do .5 ohms or .2 ohms or no. Because im pretty sure you need to do the equation r=v/I so the voltage is constant at 3.7 and the current is 20 a so will i need to use that resistance from the equation..


thanks guys and sorry for the messiness! :)
 

porkchopbun

Super Member
ECF Veteran
Verified Member
Nov 21, 2013
826
424
Northern CALI, USA
Deep breath,
Please start here: http://www.e-cigarette-forum.com/forum/blogs/baditude/6293-14-ohms-law-dummies.html

I have a variable voltage ego twists but I just bought a vv/ww device (the itaste mvp 2)
They MVP has safety mechanism to prevent you from hurting yourself..the EGO Twist doesn't

With my current RDA's and when I dont sub ohm at around 1.2 ohms lets say with 28g kanthal i can get about 25 hits and then I get a burnt taste and vapor production goes down. Is it normal or should i be able to get more hits?
Depends how much cotton/wicking material, deep your juice well is, etc..but that sounds pretty good to me..

I'm sure others will chime in...to help you in right safe direction...
i recently ordered two 18650 batteries and they are 20a
Read up on Ohm's law, battery safety, mech mod maintenance, coil building resistance, then you can answer it yourself...
I built a dual coils hitting 22 amps on the battery..so for me, hell no...

For my sub ohming i will be using 26g kanthal wire. Now this is another important question. Does it matter if I do .5 ohms or .2 ohms or no. Because im pretty sure you need to do the equation r=v/I so the voltage is constant at 3.7 and the current is 20 a so will i need to use that resistance from the equation..
Just download ohm calculator onto your smartphone..make it easy or go to web based ohm calculator..
 
  • Like
Reactions: poetruck

PapawBrett

Retired
ECF Veteran
Verified Member
Jul 16, 2012
8,761
66,518
Monroe NC
Sub-ohming on the first post ? I think my first post was something like "Hi Y'all......"

I don't sub-ohm, can't help you there. (V X V) divided by Ohms = Wattage. I tend to vape at 9W to 11W. To each their own.
I would advice you to contact the manufacturer about the limits of what your Mod is designed for. Pretty, shiny and metallic does not help if the fire button is a cheap plastic. Same for wiring and/ or chips.
As far as the burnt taste, what wicking material and how often do you moisten the wicks ?
And resistance- a cheap ($15) multi- purpose Voltmeter at Lowe's, Home Depot or even WalMart can work wonders...
Good Luck. Vape Happy.
 

Sthur

Vaping Master
ECF Veteran
Verified Member
Aug 14, 2013
3,160
978
Denver
Read before you leap. Get sony vtc4 or vtc5 or purple efest which are all 30/35 amp. These are safe down too ~0.2 ohms.

25 hits on rda, that's soaking the coil normal is 5-10.

Mvp has 1.2 ohm cut off and has to be above that to work, like above ego doesn't they are ment for small tanks at 1.6-2.4 coils.

Get a volt meter and read, then read more be safe.
 

dice57

Vaping Master
ECF Veteran
Verified Member
Sep 1, 2013
4,960
3,734
68
Mount Vernon, Wa
first of STOP sub ohm'ing on a ego batt, it will blow, vent, become a missle, not safe by any stretch of the imagination.

20 amp batts are ok, 30 amp are better.. If you have to ask, well, you're not ready yet.

Your mvp 2 puts ot 11 watts max, so anything under 1.5 ohms is just a waste of a build on it., umm, a 0.2 ohm build demands 21 amps from a fresh battery, a 1.5 ohm build only 2.8 amps, so yeah, really kind of matters, in the important kind of way.
 

twizted

Super Member
ECF Veteran
Verified Member
May 14, 2011
593
635
Kentucky
Hi guys I just made an account minutes ago so please forgive me in advance if I made or am going to make any mistakes.

Ok so recently I just got into the world of rebuilding. I have two cartel v2 stillare rda's and they are clones. I have 32g 28g, and also 26g kanthal wire.

I have a variable voltage ego twists but I just bought a vv/ww device (the itaste mvp 2)

whenever I build coils and sub ohm the mvp does not fire the coil but my ego twist will.


first of all a quick question. With my current RDA's and when I dont sub ohm at around 1.2 ohms lets say with 28g kanthal i can get about 25 hits and then I get a burnt taste and vapor production goes down. Is it normal or should i be able to get more hits?



now about what I really wanted to talk about... I want to get into mech mods and sub ohming and all of that so I need some help/advice

i recently ordered two 18650 batteries and they are 20a is that ok and somewhat safe?

I also ordered a panzer mechanical mod clone. For my sub ohming i will be using 26g kanthal wire. Now this is another important question. Does it matter if I do .5 ohms or .2 ohms or no. Because im pretty sure you need to do the equation r=v/I so the voltage is constant at 3.7 and the current is 20 a so will i need to use that resistance from the equation..


thanks guys and sorry for the messiness! :)
3.7 volts @ .2 ohm = 18.5 amps.

Sent from my Nexus 10 using Tapatalk
 

Baditude

ECF Guru
ECF Veteran
Apr 8, 2012
30,394
73,076
71
Ridgeway, Ohio
Please read this blog and all the links within it.

Information Resources for Your First RBA

There's a LOT to learn before you venture into sub-ohm coil rebuilding. A basic understanding of Ohm's Law and how it relates to how many amps a coil will pull from a battery is critical. Pull too many amps from a battery which can not provide it will cause the battery to go into thermal runaway. YOU DO NOT WANT THIS TO HAPPEN to you! Ohm's Law for Dummies

IMR_battery_post-venting.jpgsubohm2face.jpg

If you don't know what you are doing and do it SAFELY, you have NO BUSINESS doing sub-ohm rebuilding. Should you have a terrible accident caused from ignorance or arrogance, your actions do not only reflect upon yourself but also on the entire vaping community once the media catches wind.
 
Last edited:

kingja200

Full Member
Jul 16, 2014
26
1
New York
ok I read up on some stuff and have a better understanding

I still want to know why is it bad for me to use my rda with my ego twist? Lets say I even build it at 2 ohms will it then be safe?
Another question, why does the mvp need to be over 1.5 ohms? It fires when I make a 1.2 ohm build?

and lastly when I build a coil with x ohms lets say and use the ohm law calculator I will put 4.2v as my voltage and do I put in 20a for my current or do i put in the x ohms and let it calculate my amps because its 20a on the battery so i think it stays constant?

thanks and sorry for any trouble I just love vaping and wanna do it the right way and SAFELY? I wanna learn from my mistakes..
 

ckquatt

Ultra Member
ECF Veteran
Verified Member
Oct 8, 2013
2,962
8,493
Milledgeville, GA
I still want to know why is it bad for me to use my rda with my ego twist? Lets say I even build it at 2 ohms will it then be safe?

Its not bad to use an RDA on your twist, whats bad is trying to use a sub ohm coil in that RDA on your twist. The battery was not meant to put out that much current and could lead to catastrophic failure possibly blowing your head and/or hands off. The lower ohms you go the more amps thae battery has to push out to fire it. If its to much for the battery to handle it could possibly vent and hurt really bad!

I never went below 1.5 on my ego batteries on anything I made!

Read read read then read some more!
 

dice57

Vaping Master
ECF Veteran
Verified Member
Sep 1, 2013
4,960
3,734
68
Mount Vernon, Wa
ok I read up on some stuff and have a better understanding

I still want to know why is it bad for me to use my rda with my ego twist? Lets say I even build it at 2 ohms will it then be safe?
Another question, why does the mvp need to be over 1.5 ohms? It fires when I make a 1.2 ohm build?

and lastly when I build a coil with x ohms lets say and use the ohm law calculator I will put 4.2v as my voltage and do I put in 20a for my current or do i put in the x ohms and let it calculate my amps because its 20a on the battery so i think it stays constant?

thanks and sorry for any trouble I just love vaping and wanna do it the right way and SAFELY? I wanna learn from my mistakes..

Well pilgrim, I'll answer you this way,

How many amps max can the MVP put out? My guess is 2 amps, don't know, don't care, but YOU should.!!! :D:lol:

K, now tell me, at say the max volts of the mvp which I believe is 5 volts, again, dkdc. but ushd. now tell me, how many amps are demanded from a battery by a 1.2 ohm coil??? And how many amps at 1.5 ohms?? Now this I do know, but doesn't concern me, so falls into don't care, but once again you should.

Just saying, need to know this chit if one wants to build, and the only way to know is by doing the ground work then the field work

You can run a rba on a ego, but have to be very careful and know exactly it's specs and stay with in its design limits. Also need an ohm meter to test the builds. To get the most out of any rba, requires a mod, regulated, mech if you know your chit, but a mod. More amps, more running time, can get more out of ones vape.

Lots of great threads on everything you need to know.


Vape long and Prosper.!!!
 

Baditude

ECF Guru
ECF Veteran
Apr 8, 2012
30,394
73,076
71
Ridgeway, Ohio
An eGo battery, MVP, or any regulated battery device was designed to use only "factory built" coils. Their protective circuitry will see any resistance less than 1.2 ohm as a short in the atomizer and will refuse to fire it. They also have amp limits, so they will refuse to fire sub-ohm coils.

Use the Ohm's Law Calculator to determine if the coil resistance of your RBA will pull more amps than the battery has to provide. Going over the amp limit of the battery can have catastrophic results. Always use 4.2 volts as your voltage and put in the measured ohms of your coil as the resistance. Blank out the rest of the parts in the calculator. Press calculate and the "current" will be the amps that the coil will attempt to pull from the battery.

1.0 ohm = 4.2 amp draw
0.9 ohm = 4.6 amp draw
0.8 ohm = 5.2 amp draw
0.7 ohms = 6 amp draw
0.6 ohms = 7 amp draw
0.5 ohms = 8.4 amp draw
0.4 ohms = 10.5 amp draw
0.3 ohms = 14.0 amp draw
0.2 ohms = 21.0 amp draw
0.1 ohms = 42.0 amp draw
 

asvaldr

Senior Member
ECF Veteran
Jun 8, 2014
233
147
indonesia
An eGo battery, MVP, or any regulated battery device was designed to use only "factory built" coils. Their protective circuitry will see any resistance less than 1.2 ohm as a short in the atomizer and will refuse to fire it. They also have amp limits, so they will refuse to fire sub-ohm coils.

Use the Ohm's Law Calculator to determine if the coil resistance of your RBA will pull more amps than the battery has to provide. Going over the amp limit of the battery can have catastrophic results. Always use 4.2 volts as your voltage and put in the measured ohms of your coil as the resistance. Blank out the rest of the parts in the calculator. Press calculate and the "current" will be the amps that the coil will attempt to pull from the battery.

1.0 ohm = 4.2 amp draw
0.9 ohm = 4.6 amp draw
0.8 ohm = 5.2 amp draw
0.7 ohms = 6 amp draw
0.6 ohms = 7 amp draw
0.5 ohms = 8.4 amp draw
0.4 ohms = 10.5 amp draw
0.3 ohms = 14.0 amp draw
0.2 ohms = 21.0 amp draw
0.1 ohms = 42.0 amp draw
And the master of safety has spoken lol.
Take your time for some research and take it thorough my friend. And in time, came along with your knowledge you will know the answer.

Ps: this thread will definitely help http://www.e-cigarette-forum.com/forum/showthread.php?t=465483 [emoji6]
 
Status
Not open for further replies.

Users who are viewing this thread