Battery safety for my build

[meloserj]

Hello dudes
Quick question, setup is mech mod with 0.17 ohm atomizer resistance and LG HE4 battery. According to steam-engine for continues drain we will have -24% headroom for 20A amp limit. But puff’s are happening around 3 seconds.
Is this battery still safe to vape on it in mechanical mod with such pulse discharge?
I know I should use something like Sony VTC5 with 30A limit, but as far as I know 30A is continuous so like HE4 20A. But we are using pulse for around 3 sec. That made me wired if still HE4 could be used or not.
I checked @Mooch battery ratings, and somehow convinced with 3-5 sec pulses. But I wanna be sure about my setup.
Waiting for your kind advises mates.

 

[DaveP]

Others will be along to discuss, but Steam Engine says you will pull 24.7 amps at 4.2v with 103 watts on a mech. That's pushing a 20A battery a little.

As it reaches the nominal voltage of 3.7v where it will stay during most of it's vape time, you are down to 21.8A.

I'd go with a Mooch approved 30A battery. As Mooch says, you can pulse a little over the CDR (constant discharge rating), but you are better off picking a battery that has CDR over the highest current level you will vape.

Higher CDR is better when there's a hot coil involved. I vape at 10 watts on LG HG2 and Sony VTC6 for the higher MAH rating that gives me longer battery life at low watts.

Why not look at some of the popular 200W electronic mods? Those let the electronics carry the load instead of stressing out the batteries. A triple battery mod can easily supply your wattage needs without worry. If you exceed the current rating it will shut you down and let you know without boiling the electrolyte.

 

[meloserj]

Others will be along to discuss, but Steam Engine says you will pull 24.7 amps at 4.2v with 103 watts on a mech. That's pushing a 20A battery a little.

As it reaches the nominal voltage of 3.7v where it will stay during most of it's vape time, you are down to 21.8A.

I'd go with a Mooch approved 30A battery. As Mooch says, you can pulse a little over the CDR (constant discharge rating), but you are better off picking a battery that has CDR over the highest current level you will vape.

Higher CDR is better when there's a hot coil involved. I vape at 10 watts on LG HG2 and Sony VTC6 for the higher MAH rating that gives me longer battery life at low watts.

Why not look at some of the popular 200W electronic mods? Those let the electronics carry the load instead of stressing out the batteries. A triple battery mod can easily supply your wattage needs without worry. If you exceed the current rating it will shut you down and let you know without boiling the electrolyte.

Thanks bro for comments, but I am using this setup in my mechanical mod. I have DNA-200 device and I don't have issue with battery setup there. My main question was if I pulse for 3-5 sec will it cause any risk to myself and mod?

 

[Topwater Elvis]

If saftey is a concern at all I would never recommend exceeding any battery's CDR.
Pulse = risky iffy territory, one tiny mistake or mishap can result in dangerous situations.

The only true 30a CDR cells are LGHB 2,4 or 6 1500 mah.
Sony vtc5A (must be "A") is 25a CDR.
The vtc5 is not & never has been a 30a cell, it is a 20a CDR cell.

Only buy from reputable vendors / dealers to avoid counterfeit and or lesser quality cells.

 

[meloserj]

If saftey is a concern at all I would never recommend exceeding any battery's CDR.
Pulse = risky iffy territory, one tiny mistake or mishap can result in dangerous situations.

The only true 30a CDR cells are LGHB 2,4 or 6 1500 mah.
Sony vtc5A (must be "A") is 25a CDR.

Only buy from reputable vendors / dealers to avoid counterfeit and or lesser quality cells.

According to @Mooch thread in 18650 Battery Ratings -- Picking a Safe Battery to Vape With | E-Cigarette Forum he mentioned that still we can reach to 25A in max vape amp limit. As 0.17 ohm will be near boundary of 25A (24.71A) in 4.2 volts, is that still safe for my puffs around 3-5 sec?

 

[zoiDman]

Hello dudes
Quick question, setup is mech mod with 0.17 ohm atomizer resistance and LG HE4 battery. According to steam-engine for continues drain we will have -24% headroom for 20A amp limit. But puff’s are happening around 3 seconds.
Is this battery still safe to vape on it in mechanical mod with such pulse discharge?
I know I should use something like Sony VTC5 with 30A limit, but as far as I know 30A is continuous so like HE4 20A. But we are using pulse for around 3 sec. That made me wired if still HE4 could be used or not.
I checked @Mooch battery ratings, and somehow convinced with 3-5 sec pulses. But I wanna be sure about my setup.
Waiting for your kind advises mates.

I Wouldn't consider a 0.17 Ohm build on a Mech Mod to be a Safe build with any 20A Battery.

And would Seriously suggest that you Raise the Ohms so that you have a +10% Headroom on the Amp Draw.

I would Also consider just How Much Venting your Mech Mod is Capable of. And the Location of the Venting if/when the Battery Swells in Mech Mod.

 

[Topwater Elvis]

According to @Mooch thread in 18650 Battery Ratings -- Picking a Safe Battery to Vape With | E-Cigarette Forum he mentioned that still we can reach to 25A in max vape amp limit. As 0.17 ohm will be near boundary of 25A (24.71A) in 4.2 volts, is that still safe for my puffs around 3-5 sec?

We all have to set our own saftey limits.
I do not exceed nor would I ever recommend exceeding the CDR of any cell for any amount of time for any reason.
Just me , I do not consider it to be a safe practice to exceed CDR at all.
My personal safety comfort zone is to stay below the CDR of any cell I use.

The only cell I would use in a mechanical at .17Ω is a true 30a CDR battery. That isn't a recommendation, I would never build that low for use on a single cell mechanical to begin with.

 

[KenD]

Thanks bro for comments, but I am using this setup in my mechanical mod. I have DNA-200 device and I don't have issue with battery setup there. My main question was if I pulse for 3-5 sec will it cause any risk to myself and mod?

Never good to exceed the cdr. Pulse ratings are useless. In addition to the pulse length you'd also need information about the pause length between pulses and you don't have that information. Also remember that the cdr lowers when the batteries age and deteriorate. If you insist building that low you should get the batteries suitable for it. 30 amp cells (LG hb2/4/6) would be best, but the 25 amp Sony vtc5a (not vtc5, that's a 20 amp cell) is a very good cell and can handle that build. Or you could get a two-battery parallel mech mod. As there are safe ways to fire your build why would you even consider taking unnecessary risks?

Sent from my K6000 Pro using Tapatalk

 

[zoiDman]

Hello dudes
Quick question, setup is mech mod with 0.17 ohm atomizer resistance and LG HE4 battery. According to steam-engine for continues drain we will have -24% headroom for 20A amp limit. But puff’s are happening around 3 seconds.
Is this battery still safe to vape on it in mechanical mod with such pulse discharge?
I know I should use something like Sony VTC5 with 30A limit, but as far as I know 30A is continuous so like HE4 20A. But we are using pulse for around 3 sec. That made me wired if still HE4 could be used or not.
I checked @Mooch battery ratings, and somehow convinced with 3-5 sec pulses. But I wanna be sure about my setup.
Waiting for your kind advises mates.

Just wanted to Add that Asking about something like this was a Very Good Call.

Too many are Afraid to ask. And when it comes to something like this, Not Asking could be Difference between enjoying vaping and having a Very Bad Day.

 

[sonicbomb]

Mech mods are pretty and ergonomic, they are not the path to safe big cloud production.

 

[DaveP]

There are a number of 150W and 200W mods for $50 to $60 or less, especially if you catch them on sale. Mech mods were a step up from the eGo 3.2v and 3.4v devices before electronic mods went high power. There's really no reason to use a mech today, IMO, unless you like a mechanical device over an electronic mod. I know that retro is cool, but safety is much more important.

Vapor Range has the Eleaf Pico Dual 200W Kit for $44.95.

https://www.vaporrange.com/Eleaf-Pico-Dual-200W-Kit-p/eleaf-pico-dual-200w-kit.htm

 

[DaveP]

Thanks bro for comments, but I am using this setup in my mechanical mod. I have DNA-200 device and I don't have issue with battery setup there. My main question was if I pulse for 3-5 sec will it cause any risk to myself and mod?

My honest answer to that question is equating a mech mod to an automobile. It might go 130mph if you hold it on the floor and let it rip, but you are taking your personal safety into your own hands when you do that. Just my opinion. I try to stay within the safety limits of the device and recommend that others do that, too. Flames and hot, spewing electrolyte in your hand or pocket always results in an ER visit with horrible results.

You might push it over the limit for months or years, but one day you could become a statistic. It's just not worth the risk. Mech mods were designed for one ohm and higher coils. That's just me, as a fellow vaper who wants all to be as safe as possible.