RDA Eleaf iStick 100W Amp Limit

[guitarfanatic20]

Hello everyone!

I just got my new RDA in the mail this morning and I was going to do a 28 AWG triple twisted triple coil build on it. I have the LG HE2 batteries that have a 20 AMP max continuous limit. I believe the eleaf iStick 100w is a parallel battery box mod as both batteries face the same way when you put them in and I can put only one battery in and it still turns on without having to stick the other one in. If it is a parallel mod, does that mean I have a 40 AMP limit as they combine along with the capacity? My build is going to be around 0.2 ohms. Thank you very much!

 

[Larry J]

If I remember correctly, the iStick 100W will fire down to .15 ohms. Since it is a regulated mod, the chip will protect you (and your batteries) from drawing too much power. You should be fine with a .2 coil.

 

[Jim_ MDP]

You're perfectly fine with healthy, known good 20A cells in the i100.

Being a regulated mod with circuitry and unknown res wiring between the battery and atty, the coil res isn't a reliable variable for our Ohm's Law calculations, unlike with a mech mod.

So for our purposes we use the form A = W / V

This means the heaviest amp draw on the batteries will be when they are lowest... opposite of a mech.
So for maximum safety use the mods max watts and the lowest cutoff for the batteries.

100 / 3.2 = 31.25

Yes it's a parallel wired mod, so divide by 2.
And to be conservative... 32/2 = 16. add a bit for chip/circuit inefficiencies... call it 18.
That's the max amps the mod can draw from each battery. Any good 20A and you're good to go.

I save my 25Rs for higher watt boxes and use either HE4s or HG2s with their slightly higher mAh in my i100.

 

[Dirge Fox Forrester]

Hey I just created an account so I could ask the community who knows a bit more about this and can be more direct with my problem instead of me surfing google and youtube for an answer which I have been since the issue arised. So I'm running the Freakshow RDA 510 thread and recently I've gotten bored of the regular kanthal coil build so i decided to mix things up a bit and go with a twisted coil build using the only wire i have 26g kanthal wire, did 5 wraps and made it a dual coil build in any event i don't have an ohm reader so i use my multimeter both coils are reading identical at 1.3 (mind you multimeters I understand multimeters aren't to the tee precise on reading the measurements of voltage/ohms) anyways I put it on my istick 100w instead of my unregulated tugboat to give it a test fire and make sure nothing goes terribly wrong, now the first thing i'm noticing is that it fires for a few milliseconds and makes this low bee buzzing sound. Something I haven't incurred before with the regular coil builds i've been using up until this point. After a few seconds of pulsing the LED display starts reading "Atomizer Low". I can see on the display my ohms are reading at .15 ohms which to my knowledge is considerably low and i was actually aiming for a .5 - .8 build. I really do like the twisted coil build and i don't want to have to remove them to solve my problem. Is there perhaps something i did wrong with my build? If someone could help i'd appreciate it i'll probably just try more wraps to increase the resistance I really don't want to short my batteries, i'm what you call a broke vaper
I've attached a picture of my build to give a better view of what i'm talking about. ANY HELP WOULD BE ARDENTLY APPRECIATED!!!

 

[HighPlainsPuffer]

Hey I just created an account so I could ask the community who knows a bit more about this and can be more direct with my problem instead of me surfing google and youtube for an answer which I have been since the issue arised. So I'm running the Freakshow RDA 510 thread and recently I've gotten bored of the regular kanthal coil build so i decided to mix things up a bit and go with a twisted coil build using the only wire i have 26g kanthal wire, did 5 wraps and made it a dual coil build in any event i don't have an ohm reader so i use my multimeter both coils are reading identical at 1.3 (mind you multimeters I understand multimeters aren't to the tee precise on reading the measurements of voltage/ohms) anyways I put it on my istick 100w instead of my unregulated tugboat to give it a test fire and make sure nothing goes terribly wrong, now the first thing i'm noticing is that it fires for a few milliseconds and makes this low bee buzzing sound. Something I haven't incurred before with the regular coil builds i've been using up until this point. After a few seconds of pulsing the LED display starts reading "Atomizer Low". I can see on the display my ohms are reading at .15 ohms which to my knowledge is considerably low and i was actually aiming for a .5 - .8 build. I really do like the twisted coil build and i don't want to have to remove them to solve my problem. Is there perhaps something i did wrong with my build? If someone could help i'd appreciate it i'll probably just try more wraps to increase the resistance I really don't want to short my batteries, i'm what you call a broke vaper
I've attached a picture of my build to give a better view of what i'm talking about. ANY HELP WOULD BE ARDENTLY APPRECIATED!!!

HI Dirge, welcome to the board! I would suggest you take a look at the steam engine calculator, which will help you predict the resistance to a build before you build it, and definitely pick up an ohm meter! That build, as described by steam engine, is reading a .25 per coil, so .125 total, which is too low for the istick 100. If fired on your mechanical, you'll be going through batteries very quickly, and be burning a lot of juice, dry hit city!

Using the 2 twisted 26 gauge wires, to get to a .4 total resistance build, steam engine says you will need 15 wraps on each side, which is a large coil! To shoot for something usable with that wire, a 10 wrap single should be right around .5, so a dual coil would ohm in at .25. Basically, twisted 26 is tough to work with, twisted 28 or 26/28 might be better to look at trying out! My favorite dripper wire is 2 twisted 30 twisted with a 26, and my favorite rta wire is twisted 30 twisted with a 28 strand.

I've got a pair of istick 100's, and when fired at low voltage, i.e. low resistance coil not high enough wattage, the board humms pretty badly. I don't fire mine below 3.6 anymore because of this.