200 Watt Mods Battery Safety

[cobalt327]

*SNIP* The problem is figuring out how long the pulse needs to be. It will be arbitrary, but perhaps it will give us a decent ballpark.

Bare minimum of 15 seconds- which is about the longest regulated mods will fire before stopping. More are in the 10-12 second range.

 

[Mooch]

Not exactly sure what context @Mooch was discussing in that post or why he'd suggest they needed built in batteries, maybe he could chime in here. But one of the reasons Evolv went with 3 cell lipo is because that was their intended design. Being at a maximum 23A input current and unable to utilize the full potential of today's 30A+ batteries requires more than 2 series 18650 or 8.4V in order for them to achieve 200W so 3 cells in series was required.


And to add to the list?
Tesla Invader III 240W

I'm completely confused...built-in batteries? Do you remember where I was talking about that?

 

[Vlad1]

I'm completely confused...built-in batteries? Do you remember where I was talking about that?

No, IDK that you did. Apparently someone else was referencing comments you may have made then that was posted, then reposted by someone else and I didn't realize it at the time and mistook it as a quote from you. sorry for the confusion.

 

[Mooch]

No, IDK that you did. Apparently someone else was referencing comments you may have made then that was posted, then reposted by someone else and I didn't realize it at the time and mistook it as a quote from you. sorry for the confusion.

Ahh, no worries.

 

[JohnD0406]

some manufacturers may consider 30 seconds a "pulse" while others might be a minute, while still others might just be a few seconds.

Now to really scare you - to some, a "pulse" is measured in milliseconds. This is exactly why you need to use the CDR, not the pulse rating. A few seconds could damage the cell every time you fire it. Doesn't take a genius to figure out where that's leading... Even tiny damage that would be unnoticeable unless you were tracking the mAH (which is a good use of YiHi's Joule counter), could lead to disaster in an old cell in 3 months to a year later. Meanwhile, they're posting all over the internet "works fine for me".

 

[BigEgo]

Ahh, no worries.

I was referencing something you said on reddit in regard to pulse ratings (i.e. there is no standard for pulse ratings).

 

[WickedWicks]

I agree with you. You can still use a wide range of batteries in these 200W mods as long as you know the limitations of the batteries you're using.

... and won't accidentally hit the wrong buttons.

 

[sofarsogood]

At the end of the day it's heat that makes vapor, not watts or ohms or volts. The watts race is regretable but inevitable because we don't keep kids locked up in their bedrooms until they are at least 26. The reason for that is we get tired of supporting them so they need to go find a job. As soon as they have their own money the trouble starts. Sigh.

 

[Hyperspace]

At the end of the day it's heat that makes vapor, not watts or ohms or volts. The watts race is regretable but inevitable because we don't keep kids locked up in their bedrooms until they are at least 26. The reason for that is we get tired of supporting them so they need to go find a job. As soon as they have their own money the trouble starts. Sigh.

Heat does make vapor but watts is what makes the heat.

 

[sofarsogood]

Heat does make vapor but watts is what makes the heat.

Watts can be used efficiently or inefficiently. It takes more watts to make heat with a very low ohm coild compared to a higher ohm one. If you make a coil with copper wire the resistance would be so low a regulated mod would probably see a low limit and refuse to fire but if it could somehow any way, the entire capacity of the battery could be exhausted without creating a useful amount of heat for vaping. WIth regulated devices there is nothing gained by using very low ohm coils if the goal is to produce heat. They just which require more power for the same amount of heat which stresses batteries.

 

[Quantum Mech]

Watts can be used efficiently or inefficiently. It takes more watts to make heat with a very low ohm coild compared to a higher ohm one. If you make a coil with copper wire the resistance would be so low a regulated mod would probably see a low limit and refuse to fire but if it could somehow any way, the entire capacity of the battery could be exhausted without creating a useful amount of heat for vaping. WIth regulated devices there is nothing gained by using very low ohm coils if the goal is to produce heat. They just which require more power for the same amount of heat which stresses batteries.

That only works if you presume the higher ohm build is made with smaller gauge wire

If we presume the same gauge wire is used then the higher ohm coil will require more wattage

Or same ohm coils with different gauge wire require different wattages to be applied too

Heat flux is what counts

KA1 single coils aiming for 250mW/mm²

26awg 0.6ohm coil will need 17w for 251mW/mm²

24awg 0.6ohm coil will need 34w for 250mW/mm²

 

[Hyperspace]

Watts can be used efficiently or inefficiently. It takes more watts to make heat with a very low ohm coild compared to a higher ohm one. If you make a coil with copper wire the resistance would be so low a regulated mod would probably see a low limit and refuse to fire but if it could somehow any way, the entire capacity of the battery could be exhausted without creating a useful amount of heat for vaping. WIth regulated devices there is nothing gained by using very low ohm coils if the goal is to produce heat. They just which require more power for the same amount of heat which stresses batteries.

I realize that but what I was getting at is energy is being used to create heat in a E-cig and the energy is measured in watts or volts.

 

[JohnD0406]

Heat flux is what counts

Ding! We have a winner! You nailed it. Want to watch a bunch of people stare into space? Start a discussion about heat flux! LOL

 

[Jim_ MDP]

I don't know if you can get the same vapor production with higher gauge, higher res, efficient coils at lower energy.

And this pissing contest is all about the cloudz brah.

 

[Quantum Mech]

Ding! We have a winner! You nailed it. Want to watch a bunch of people stare into space? Start a discussion about heat flux! LOL

Well its what everyone aims for when they set their wattage

I don't know if you can get the same vapor production with higher gauge, higher res, efficient coils at lower energy.

And this pissing contest is all about the cloudz brah.

Using the same gauge wire & wattage set for same heat flux

The higher ohm coil has more surface area and will produce more 'cloudz brah'

 

[Jim_ MDP]

Using the same gauge wire & wattage set for same heat flux

The higher ohm coil has more surface area and will produce more 'cloudz brah'

I was wondering if they could handle the same heat flux before they went ping.

 

[Quantum Mech]

I was wondering if they could handle the same heat flux before they went ping.

Well wonder no more

Build your low ohm coil, find your sweet spot, work out the heat flux

Using the same wire build a higher ohm coil, set wattage to match heat flux

And get an increased cloud mass !

 

[Jim_ MDP]

I just might try it. Remind me when I'm sober.

The problem with my thinking along these lines is I make a hard distinction in my mind where "high res, high efficiency" makes me think 2.5+ heads in an MTL clearo on a stick batt. That doesn't say "clouds" to me.

But I could roll up something a bit over 1.0 for an RDA to see how the numbers shake out.
Not even sure where to start. Only thing I'm sure of... I think I'll have another drink.

 

[cobalt327]

If anyone knows of more please add them.

HCigar VT133 DNA 200

 

[Hyperspace]

HCigar VT133 DNA 200

You're right I did forget that one. It's too bad I can't edit in that one anymore.