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Looking for some advise/knowledge

walshfx

walshfx

Member For 2 Years
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Hey fellow vapers, as the title suggests, Im looking for advice and all the knowledge i can get on building on an rda, while I'm familiar with ohms law and I only ever buy the highest quality batteries, I want to be sure I have a comprehensive knowledge of all bases before I start. To start off with I have a voopoo drag 157 W regulated mod, which runs off 2 × 18650 rated @19 amp continuous current sony batteries and I want the Vandy Vape Bonza RDA. As a beginner I would lean towards premade coils such as the Alien fused claptons with a dual coil reading of .11 ohms at around 90w to 100W, I have an ohm tester and all the tools, would the 2 batteries hold up to such a low resistance? Or do I have a lot to learn before I start in rebuildables, all advise/criticism is appreciated, as it all leads to knowledge. Thanks for your time everyone, Zack.
 
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mach1ne

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on a regulated box, the chipset will have an amp limit, which dictates how low it can fire, and what wattage it can fire at, at a given resistance. im not familiar with the specifics of the drag, but i am pretty sure it can give you 100w at .1 ohms pretty easily. it might not fire below .1 (majority of regulated devices dont) though. battery quality still matters regardless of regulated or mechanical, so always choose the best ones you can get (research).

when you are using a mech mod is when you have to start calculating amp draw and worrying about safety. its pretty easy to punch your info into an ohms law calculator and find out if you are pushing your luck/batteries too hard (put your mods voltage output and your builds resistance into calculator, it will tell you the wattage you are pulling and the amps. know what you are doing if you intend to exceed your batteries amp limits).

it sounds to me like you are thinking the right way to keep yourself out of trouble, and you have the basics covered. just stay diligent and careful as you learn (and dont get lazy once youre comfortable with everything). we have a pretty great community in the coil building area here too, if you need more advice, or decide to get into making your own wire. have fun experimenting with building :cheers:
 
5150sick

5150sick

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VOOPOO DRAG 157W TC Box Mod Features:

  • Dimensions: 90mm by 54mm by 24mm
  • Dual High-Amp 18650 Batteries - Not Included
  • Wattage Output Range: 5-157W
  • Min Atomizer Resistance: 0.05ohm
  • Temperature Range: 200-600F
  • Supports Ni200 Nickel, Titanium, and Stainless Steel Heating Elements
  • Comprehensive TCR Adjustments
  • Highly Advanced 32-Bit GENE Chip

The mod will fire down to 0.05 ohms so your RDA should be fine at 0.11 ohms.

Since you have a regulated device it won't allow the device to fire if the ohms are to low or if you have a short.
 
walshfx

walshfx

Member For 2 Years
Member For 1 Year
mach1ne said:
on a regulated box, the chipset will have an amp limit, which dictates how low it can fire, and what wattage it can fire at, at a given resistance. im not familiar with the specifics of the drag, but i am pretty sure it can give you 100w at .1 ohms pretty easily. it might not fire below .1 (majority of regulated devices dont) though. battery quality still matters regardless of regulated or mechanical, so always choose the best ones you can get (research).

when you are using a mech mod is when you have to start calculating amp draw and worrying about safety. its pretty easy to punch your info into an ohms law calculator and find out if you are pushing your luck/batteries too hard (put your mods voltage output and your builds resistance into calculator, it will tell you the wattage you are pulling and the amps. know what you are doing if you intend to exceed your batteries amp limits).

it sounds to me like you are thinking the right way to keep yourself out of trouble, and you have the basics covered. just stay diligent and careful as you learn (and dont get lazy once youre comfortable with everything). we have a pretty great community in the coil building area here too, if you need more advice, or decide to get into making your own wire. have fun experimenting with building :cheers:
Click to expand...
Great reply, yeah I don't want to be one of those people who jumps straight into advanced areas without knowing what I'm doing first alothough ive been vaping for 5 months and watched hours of videos im still a newbie to it, i figured as much in having a regulated mod that it would cease to fire if there was a short or any overload but I just wasnt going to risk it without some experienced advise. So thanks very much!
 
walshfx

walshfx

Member For 2 Years
Member For 1 Year
5150sick said:
VOOPOO DRAG 157W TC Box Mod Features:

  • Dimensions: 90mm by 54mm by 24mm
  • Dual High-Amp 18650 Batteries - Not Included
  • Wattage Output Range: 5-157W
  • Min Atomizer Resistance: 0.05ohm
  • Temperature Range: 200-600F
  • Supports Ni200 Nickel, Titanium, and Stainless Steel Heating Elements
  • Comprehensive TCR Adjustments
  • Highly Advanced 32-Bit GENE Chip

The mod will fire down to 0.05 ohms so your RDA should be fine at 0.11 ohms.

Since you have a regulated device it won't allow the device to fire if the ohms are to low or if you have a short.
Click to expand...
Thats what I was hoping to hear! Thanks mate, really appreciate the reply.
 
NineNine

NineNine

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5150sick said:
VOOPOO DRAG 157W TC Box Mod Features:

  • Dimensions: 90mm by 54mm by 24mm
  • Dual High-Amp 18650 Batteries - Not Included
  • Wattage Output Range: 5-157W
  • Min Atomizer Resistance: 0.05ohm
  • Temperature Range: 200-600F
  • Supports Ni200 Nickel, Titanium, and Stainless Steel Heating Elements
  • Comprehensive TCR Adjustments
  • Highly Advanced 32-Bit GENE Chip

The mod will fire down to 0.05 ohms so your RDA should be fine at 0.11 ohms.

Since you have a regulated device it won't allow the device to fire if the ohms are to low or if you have a short.
Click to expand...
agree
 
Synphul

Synphul

Gold Contributor
Member For 4 Years
It's still a good idea to build with some safety in mind on a regulated rather than solely relying on an inexpensive chip 100%. They should cut off and have protections but should and do can be very different.

On a regulated the resistance doesn't mean as much so long as it falls within the mod's capabilities. Different mods have different low ohm cutoffs. Sometimes pushing right to the limits can cause intermittent issues like if the mod supports .05 ohms building right at .05. Might be better sticking with .07-.08 for a minimum just to give a little padding for error.

What does come into play on regulated mods is wattage. It doesn't matter if it's a .1 ohm, .5ohm or 1.0 ohm build, 55w is 55w. Or in your case 90w. Divide the wattage you're aiming for by the number of batteries, then divide that by the typical low battery cutoff (usually estimated at 3.2v) and divide that by an estimated mod efficiency of 90% (0.9). With 90w on a dual battery mod, 45w / 3.2v / 0.9 = 15.63A per battery. For 100w (divided by 2 batteries), 50w / 3.2v / 0.9 = 17.36A per battery. In other words you're fine with 19-20A batteries.
 
walshfx

walshfx

Member For 2 Years
Member For 1 Year
Synphul said:
It's still a good idea to build with some safety in mind on a regulated rather than solely relying on an inexpensive chip 100%. They should cut off and have protections but should and do can be very different.

On a regulated the resistance doesn't mean as much so long as it falls within the mod's capabilities. Different mods have different low ohm cutoffs. Sometimes pushing right to the limits can cause intermittent issues like if the mod supports .05 ohms building right at .05. Might be better sticking with .07-.08 for a minimum just to give a little padding for error.

What does come into play on regulated mods is wattage. It doesn't matter if it's a .1 ohm, .5ohm or 1.0 ohm build, 55w is 55w. Or in your case 90w. Divide the wattage you're aiming for by the number of batteries, then divide that by the typical low battery cutoff (usually estimated at 3.2v) and divide that by an estimated mod efficiency of 90% (0.9). With 90w on a dual battery mod, 45w / 3.2v / 0.9 = 15.63A per battery. For 100w (divided by 2 batteries), 50w / 3.2v / 0.9 = 17.36A per battery. In other words you're fine with 19-20A batteries.
Click to expand...
Thats a great response mate! So say I do my equation and it comes to 28 amps, thats actually split over the 2 batteries, so each battery with have a draw of around 14 amps each?
 
Synphul

Synphul

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Member For 4 Years
walshfx said:
Thats a great response mate! So say I do my equation and it comes to 28 amps, thats actually split over the 2 batteries, so each battery with have a draw of around 14 amps each?
Click to expand...
Yea if your total is 28a it's divided between the batteries. It makes it easier though to divide the target wattage by number of batteries to begin with. Then when you do the math it already has it broken down per battery to avoid confusion.

If 100w is the target wattage -
For a single battery, 100w / 3.2v / 0.9 = 34.72 amps per battery.
dual battery, 50w / 3.2v / 0.9 = 17.36 amps per battery.
triple battery mod, 33.3w / 3.2v / 0.9 = 11.57 amps per battery.

If the target wattage is different just divide it by the # of batteries and plug into the equation. If you followed that equation the way it's set up and came up with 28a, it would mean you started with a wattage target of somewhere around 160-170w. If not, if your target wattage was somewhere around 80w and you ended up with 28a then it's split over 2 batteries and you skipped the step where you divide the initial target wattage by the # of batteries. Not sure how you factored it exactly to get 28a, if you started with 80w or 160w.
 
walshfx

walshfx

Member For 2 Years
Member For 1 Year
Synphul said:
Yea if your total is 28a it's divided between the batteries. It makes it easier though to divide the target wattage by number of batteries to begin with. Then when you do the math it already has it broken down per battery to avoid confusion.

If 100w is the target wattage -
For a single battery, 100w / 3.2v / 0.9 = 34.72 amps per battery.
dual battery, 50w / 3.2v / 0.9 = 17.36 amps per battery.
triple battery mod, 33.3w / 3.2v / 0.9 = 11.57 amps per battery.

If the target wattage is different just divide it by the # of batteries and plug into the equation. If you followed that equation the way it's set up and came up with 28a, it would mean you started with a wattage target of somewhere around 160-170w. If not, if your target wattage was somewhere around 80w and you ended up with 28a then it's split over 2 batteries and you skipped the step where you divide the initial target wattage by the # of batteries. Not sure how you factored it exactly to get 28a, if you started with 80w or 160w.
Click to expand...
Oh 28 Watts was just an example to see if i was on the same page as you. Sorry for the confusion. So with the coil master 521 mini tab ohm reader (entry level i know) it reads the coil at .11 ohms, but when I try to pulse it in fire mode to strum the coil it reads "Lo" and won't fire, Its ran off a single 18650 battery, would the amps be to high?
 
Letitia9

Letitia9

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walshfx said:
Oh 28 Watts was just an example to see if i was on the same page as you. Sorry for the confusion. So with the coil master 521 mini tab ohm reader (entry level i know) it reads the coil at .11 ohms, but when I try to pulse it in fire mode to strum the coil it reads "Lo" and won't fire, Its ran off a single 18650 battery, would the amps be to high?
Click to expand...
Ohms too low, move coil to your mod and you should be able to get the coil primed. Start around 35w.
 
walshfx

walshfx

Member For 2 Years
Member For 1 Year
mach1ne said:
yeah its time to start building and having fun now :D
Click to expand...
I done a build, the 2 game over alien fused claptons, got the .11 resistance like it suggests, thought I done a pretty good job of wicking, even re-wicked a couple of time but theres almost zero flavour. Is this common for the first few builds?
 
M

mach1ne

Gold Contributor
Member For 4 Years
walshfx said:
I done a build, the 2 game over alien fused claptons, got the .11 resistance like it suggests, thought I done a pretty good job of wicking, even re-wicked a couple of time but theres almost zero flavour. Is this common for the first few builds?
Click to expand...
it should be a pretty good vape. im not familiar with that companies coils, or the bonza rda. heres a quick list of things to consider:

did the coils glow evenly before you wicked them?
is your wick very tight in the coils? (maybe too tight?)
how is your coil placement (in relation to the air flow holes) compared to others (reviewers or handchecks, build shots etc)
on a parallel mech mod, that build would draw about 120-130w. if you are giving it 90, that might not be enough to really shine

thats all i got. have you tried the bonza with other builds or is this your first time with it? maybe it just sucks for flavor? i havnt even watched a review of it so all i know is that bogan designed it and most of the people i see talking about it are just saying they like it.
 
Letitia9

Letitia9

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With an rda coil placement and af is everything. Go to yt and see where they are placing their coils.
 
Don29palms

Don29palms

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Letitia9 said:
With an rda coil placement and af is everything. Go to yt and see where they are placing their coils.
Click to expand...
I absolutely agree. I usually set my coils so the airflow hits the bottom side of the coils. Also with a side airflow place the coils close to the airflow. That way as much air as possible can flow over the coils.
 
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