Not getting as much vapor as I wanted from my new APV

[Heinstein]

I recently got a new Kamry KTS with 18650 batteries and a Igo-w dual coil. I made two 7/64 holes in the atomizer. I'm using the coils that came with it. I think maybe there are too many wraps on the coils (8). This would increase the resistance and lower the temp right? So if I took the coils off and took a couple wraps off it would get hotter and I would get bigger clouds? I'm new to rebuildables and don't know much about them.
Thanks in advance.

 

[dvdgroover]

That is fundamentally correct. B sure u don't get your ohms too low though.

 

[Imperialbeachboy]

Do you have an ohm meter? What kind of batts are you using?

 

[TheReign]

try 6-7 wraps 27kanthal

 

[*deleon517*]

unless you are running dual coil there is no need for 2 air holes. too much air and not enough air can have similar results in choking coils and limiting the heating process. with that being said, you will still want to get the following items in your arsenal. Ohm meter or multi-meter, kanthal of your gauge choice, wick material(way to many options to list), and some really good batteries. One's that come in kits often are worthless no name batteries so no one knows their limits and thats very dangerous.

 

[StarsAndBars]

Take care not to blow your face off. You don't much sound like you have a clue what you're doing.

ok that was a little harsh. Do you know the amp limitation of your battery? Do you know how to calculate amp draw? Do you know ohm's law? If you answered no to any of those questions, put the device down and spend some time learning. Please don't give bad press to this community by disfiguring your face with an exploding battery.

 

[Imperialbeachboy]

Take care not to blow your face off. You don't much sound like you have a clue what you're doing.

ok that was a little harsh. Do you know the amp limitation of your battery? Do you know how to calculate amp draw? Do you know ohm's law? If you answered no to any of those questions, put the device down and spend some time learning. Please don't give bad press to this community by disfiguring your face with an exploding battery.

This is what I was thinking

 

[Heinstein]

Problem solved. The problem was the coils. I went into a shop and they hooked me up with some .3 ohm coils which was 28 guage wrapped five or six times. Also I picked up some 30 amp batteries. Now blowing huge clouds and happy. I am familiar with ohms law but I don't know how to do amp draw.

 

[Dana A]

Are you kidding me? You are going to... how can I say this?? BLOW YOUR FACE OFF!!!!!!!!!

 

[*deleon517*]

Heinstein in all honesty the vapor shop you you went to is stupid and has no care about your safety. .2ohm is extremely dangerous and should be left to the veteran builders to decide if they want to increase the risk of blowing their face off. Not just build one for a new vaper that didn't even come with all the right equipment.

on a 30 amp battery the safest lowest resistance that can be used is a .2, if something goes off while using a .3 its way to close to failure rates to know whats happening for someone just starting out.

 

[Heinstein]

While the negativity is great, it is not very informative for a newby like me. What would you suggest?

 

[Heinstein]

Ohms law says at .3 ohms with 3.7 v I'm using 12.3 amps. Thats less than half of the amperage. .12 ohms would bring it up to 30 amp. Is this all correct?

 

[StarsAndBars]

Correct Sir. Nice move with the battery. Although when figuring amps you should use 4.2 volts instead of 3.7. I realize it is a 3.7 volt battery, but the charge on them (fully charged) will generally top out at 4.2. So at .3 ohms you'd be at around 14 amps. Well within the amp limit. Just know that if you do a dual coil with each build at .3, you'll be at 28 amps.

I say that to say if you go dual coil, you'll want to increase the resistance of each build, as amperage is doubled with dual coils. MAke sense?

Also, it's very common for coils to change resistance after being fired a bit. This will be important if you find yourself skirting around the safe zone of your battery. Best to stick well within the parameters of your battery's amp limit as 30 amps is an insane discharge for such a battery and I'd treat it with a fair share of margin for error. Sounds like your gtg right now.

 

[Heinstein]

It is a dual coil and both coils were put on an ohms meter together and it read .3. So each coil would be .6 ohms and the amps would be at 14 right? Also the kts came with a fuse? Can I use it? Would it actually prevent an issue? It doesnt have a rating on it. I'm trying to figure it out.

 

[*deleon517*]

the batteries are rated at 3.7v. However when using a mehanical mod your not pulling a steady 3.7v, on a fresh battery you will be pulling 4.2v and it will taper down as the battery drains.

for a 30 amp circuit it shouldn't be pushed past 24amp for safety, a .3ohm build on a really good battery is well within that range. The reason for the negativity on my end stem's from the fact that I personally nor should a business every condone a new vaper building that low a coil or building it for them.

I do build sub ohm coils but refuse to do so for friends, I dont want to be the one looked at when something goes wrong on either my build or if they tried to replicate it later. If they happen to come to the cross point on their own, im more then willing to help give info but in all seriousness no one really needs a .3ohm build. It kills flavor, waste juice and most that do go that low are stupid fan boy's of cloud chasing. A nicely built .7-.9 is a much better option as you can still make nice clouds, taste your juice, and wont need to refill as often.

Hell when a lot of us on here started(myself included over 3 years vaping now) there wasn't anyone really making low ohm stuff. I remember people complaining lower resistance like 1.5ohm was too strong when set up properly at first. So a .x ohm isn't necesarry for it to work and be enjoyable, just too many people are quick to push what they use and dont always take the time to understand what the person really needs and can handle properly. Read any sub-ohm thread on the new member section 90% of them are I was told I need this or this shop set this up for me.

 

[StarsAndBars]

It is a dual coil and both coils were put on an ohms meter together and it read .3. So each coil would be .6 ohms and the amps would be at 14 right? Also the kts came with a fuse? Can I use it? Would it actually prevent an issue? It doesnt have a rating on it. I'm trying to figure it out.

Correct. Not familiar with that hardware, but using a fuse is never a bad idea. Although depending on the limit of the fuse, it could be a waste of time. I'd speculate the fuse is less than 30 amps, but would have no idea for sure. I'd recommend contacting the vendor or manufacturer to find out with certainty what the fuses's specs are.

 

[*deleon517*]

as far as the fuse most do have a amp limit they will trip at. there are several on the market so im not sure what the amp limit on the one you have. I personally never cared for fuses. while in thinking they are great, they can also be used as a bandaid. I always recommend those starting out on rebuildables to get a vv/vw mod that has built in safeties, and practice making wraps on that around the 1.2-1.5 range. Then once they get good they can explore other avenue's.

I've had things go wrong on my end with rba's and rda's and its never a fun time. those oh s**t moments happen and it's 99% of the time user error and understanding what is happening is the best thing you can do for yourself. 3 thermal batteries in over a year of rebuilding, all in the first 2 months. thats why we preach not diving into the deepend until you develop good building skills.

 

[Heinstein]

ok this is the info I was looking for. Any ideas where I can find a fuse. Maybe a 24 amp or so?

 

[dice57]

Yes a freshly charged battery is 4.2 volts, and it's good to use that figure for amp draw to give one an extra buffer, but seriously, under load, one would be lucky to see 3.9 volts actual, so the real amp draw on a freshly charged batter would be 13 amps. but then again, once the coil heats up the resistance can drop as much as .04 ohms, so then you figure the amps drawn would be more like 15 amps, which still gives one a 15 amp buffer, not even counting the maximum pulse discharge rate of 60 amps that the Sony has, I wouldn't be to concerned about blowing my face off with a .3 ohm build, as long as I knew how to build a coil, measure the ohms, had a working knowledge of ohms law, knew about proper battery maintenance, had a volt meter and ohms meter to always check things out.

But I would never accept a build from a stranger, would never venture into mechs and rba's without first being competent at building and coil maintenance, and never trust a vape shop who would willingly build a .3 ohm coil and send me on my way. I would watch them build one to see if they knew something I didn't, but trust my life and my home to them, Fracking NEVER!!!

There is a reason why when shopping for rba's, rda's, mechanicals and high amp batteries, that there is often a red warnings that say caution, this item is for advanced users only and it includes certain inherent risk!!! Warranty on this item: NONE, we do not warranty them. This is an advanced device and you should not buy it if you are not familiar with them.

 

[*deleon517*]

I did some checking around and the only one I found with listed amp level was the vapesafe 2. It has a listed 3.5 amp limit on continuous hold. over 6amps and it will trip.