What is a good coil build(ohm) for the Set I am going to buy? (all products in post)

[Annunaki]

Hey, I am pretty new at smoking ecigs. I was smoking a simple E-vod and decided that I was up for a little Upgrade. I've done alot of reserch on the topic of mechanical mods vs VW mods and decided that I was going to get me a mechanical one. I just want to know what coil build and what ohm should I go for for the build that I am going to buy. I want to produce good vapor and at the same time something that won't discharge my battery right away ( 2 batterys for the whole day). for example 1.2 ohm, 1 ohm etc?

The products are

-M16 Telescopic Mechanical Mod + Patriot RDA Atomizer

-2 Pack Demonfire IMR 18500 Rechargeable LiMn batteries High Drain 3.7V 1300mAh
(are these batteries good)?
-smok Battery Safety Fuse Protector Chip Mechanical MOD Batteries MODS Smoktech

-100% ORGANIC COTTON WICK

-10FT 28G Kanthal Wire

Thanks

 

[Warpigs]

Welcome to ECF! I have never heard of that brand of batteries.

 

[Frenchfry1942]

Well, below 1.0 ohms and it is considered sub-ohming. Great clouds and flavor. But, that has power requirements and I noticed you are using only a 1300mAH battery.

I am in the 1.2 - 1-4 area. More mods to choose and flavor is rather good, too.

 

[Annunaki]

Well, below 1.0 ohms and it is considered sub-ohming. Great clouds and flavor. But, that has power requirements and I noticed you are using only a 1300mAH battery.

I am in the 1.2 - 1-4 area. More mods to choose and flavor is rather good, too.

I understand, I am in a budget, what are semi good batteries that are in the 20$ range? (18500 or other)

 

[readeuler]

As a rule of thumb, avoid batteries and chargers with "fire" in the name (I think they're using these names to warn you; like a rattlesnake's rattle).

Baditude, our battery expert, had a blog post to help guide us mere mortals:
http://www.e-cigarette-forum.com/fo...-9-battery-basics-mods-imr-protected-icr.html

Edit: if you want good battery life, you definitely want to go 18650. It's only 15mm longer than 18500, and offers a big upgrade in mAh: milliAmp hours, a measure of how long the battery holds a charge.

 

[Frenchfry1942]

Google this. Samsung INR18650-25R (20amp)

I try to take notes on things and someone had this as a recommended battery.

 

[Annunaki]

As a rule of thumb, avoid batteries and chargers with "fire" in the name (I think they're using these names to warn you; like a rattlesnake's rattle).


Edit: if you want good battery life, you definitely want to go 18650. It's only 15mm longer than 18500, and offers a big upgrade in mAh: milliAmp hours, a measure of how long the battery holds a charge.

Thanks alot, We learn as we go, How about the EFEST IMR 18650 HIGH DRAIN 35A RECHARGEABLE Li-MN Battery 2500mAh F.T.?

It is on the link you provided as a recommended, It's not a clone, and the seller on ebay has a high rep so I trust him/her

 

[Warpigs]

Personally I would not buy batteries from Ebay. That's just my opinion though.

 

[FallenRawToast]

even when on a budget... the one thing you should never skimp on is batteries and chargers.

The "EFEST IMR 18650 HIGH DRAIN 35A RECHARGEABLE Li-MN Battery 2500mAh" is a great battery...BUT just know it is really only 20amps continuous not 35amps

 

[william11150]

Hi Annunaki, first be carefull at this level i use efest purple or sony Vtc batteries, i don't know about your batteries.
My setting is 0.3 ohms, i do 2 coils of 2 parallel 28g kanthal on a 2mm screwdriver, 7 loops each.
You can use an android application called "coilcalculator" to build your coils.

 

[sketchness]

What's your budget? And how often do you vape? I have two Sony vtc 4's. With my mech I get most of the day if I mix in my ego/nautilus while at work.

Just curious why you decided mech instead of vw? For me anything over .6 on a mech is just lacking in vapor production. I am certainly still a novice but that has been my experience.

Now on my box mod I can throw lots of wattage at any build .15 - 3.0 safely.

 

[Annunaki]

Hi Annunaki, first be carefull at this level i use efest purple or sony Vtc batteries, i don't know about your batteries.
My setting is 0.3 ohms, i do 2 coils of 2 parallel 28g kanthal on a 2mm screwdriver, 7 loops each.
You can use an android application called "coilcalculator" to build your coils.

How long does it take you to drain the bat?

 

[Annunaki]

What's your budget? And how often do you vape? I have two Sony vtc 4's. With my mech I get most of the day if I mix in my ego/nautilus while at work.

Just curious why you decided mech instead of vw? For me anything over .6 on a mech is just lacking in vapor production. I am certainly still a novice but that has been my experience.

Now on my box mod I can throw lots of wattage at any build .15 - 3.0 safely.

I vape anytime I can, I stopped smoking cigs a couple of months ago, and I still crave the demon cigs. The 15$ ecig I have does not do the trick. I decided to to Mech because I have more freedom to do more things with it. For example, I I am going out clubbing, I set up a sub ohm and vape away, If I'm going to work, I set up a 1.2 ohm and keep it nearby. Understand? My budget is around 80-90 $ .

Question. On a 1.2 ohm, how many whats do I consume on a bat, and how long does it take for the bat to die?

 

[sketchness]

Battery life will be dependent on the mah rating of the batteries you buy. And of course the coil. There are apps online that can break it down for you as far as power consumption. I just don't really care for 1.2 ohms on my mech. I have Sony vtc4's and can vape for several hours (3ish) on a charge at .27 ohms. And the last 20 hits are kinda thin. It is the reason I stepped up to a regulated box mod. I can sub ohm on it or run a nautilus. But it is way over your budget. Set of batteries, intellicharger, sigelei box mod, and an igo w3 cost me about 180. That doesnt include the 150 I spent to figure out that was what I wanted.

Rip tripper breaks down some advantages of Kicking a mech check it out it may be helpful info.

 

[PapaSloth]

Here's a brief intro to how the numbers work.

Watts is equal to Volts times Amps.

Amps is equal to Volts divided by Resistance (Ohms).

A freshly charged battery puts out about 4.2V, and this declines until around 3.7V, depending on the battery. You can drain the battery past 3.7V, but it decreases the number of recharges the battery will take. A battery that has been fully discharged will only take around 300-500 recharges, but a battery that's only 50% discharged will take 1200-1500 charging cycles. (source: How to prolong lithium-based batteries).

At 4.2V and 1.2 Ohms (resistance), the coil will draw 3.5A (4.2/1.2). That's 14.7Watts (4.2*3.5). 1 hour at 3.5A is 3500mAh. So, a 3500mAh would be completely discharged after 1 hour at full voltage on a 1.2Ohm coil. If we take the average voltage over that hour as 3.9V, that would be 3.25A or 12.675W. That would be 3250mAh for 1 hour.

If your battery is only 1200mAh, the battery would be fully discharged after about 22 minutes of continuous use. Now, that use is spread over several hours, because you don't hold the fire button down continuously for 22 minutes at a time, but it gives you a feel for how much juice you can actually vaporize on a full charge. It's really only 11 minutes or so if you're shooting for a 50% discharge rate to get the best lifespan for your batteries.

Now, lets say you lower the resistance to .3Ohms. The max amperage when the battery is fully fresh would be 4.2/.3, which is 14A. 4.2V*14A is 58.8W. At an average voltage of 3.9V, that works out to 13A and 50.7W. At 13A average, a 1200mAh battery will be fully discharged after about 5.5 minutes. That's not a lot of life at all. If you had a 2400mAh battery that was capable of at least 20A continuous discharge rate (you don't want a battery that's only capable of 14A, because you should have some headroom), you'd double the time per charge to 11 minutes. But, if you were only draining to 50%, you'd be back to 5.5 minutes of continuous firing.

 

[william11150]

How long does it take you to drain the bat?

Sorry for answering late. It depend of how you vape. For myself at 0.3ohms and 10ml liquid by day, i need 3 bats.

 

[SDGIANTSFAN]

Google this. Samsung INR18650-25R (20amp)

I try to take notes on things and someone had this as a recommended battery.

I have 2 of these....they do fine so far for my applications $11.00 apiece from my local shop