Venting 5V BoxMods - Ideas? Suggestions?

[Craig Patterson]

I have heard a lot of talk around here about venting 5v's for safety on BoxMods, and no one can come up with a safe answer. I started thinking... what if it was like a machine gun... holes all the way around. For a battery boxmod, using 2 AA box, you could put 2-3 holes on each side. As long as you keep the same number of holes on each side, the jetting in theory should force *inward* instead of any one direction... and with 8-12 holes, there shouldn't be enough force or flame/gas spewing to do any real damage to the hand, even if being held at the time.

Going to start making my boxmods like that...Will let you know when one blows up what happens.

http://www.pcinsomniacs.com/images/diagram.jpg


What do you guys think?

Craig

 

[Rocketman]

Craig,
You know I can't resist commenting. and if you don't know that I can't resist commenting,
I can't resist commenting. LOL
My opinion (everyone has one, some have one at each end) 5 volt stack battery mods, just need to use protected cells.
If the design, size of the box doesn't allow a protected cell to fit, find another box.
Even if the box can't hold pressure like a pipebombmod the energy released from a Li-ion cell can melt the plastic very quickly making it difficult to throw away.
The flames and heat released in a couple of videos posted on da U tube look bigger than I get from my propane torch. I'll pre-comment that I did not see the flaming battery pack propel off toward the horizon.

Watch that video, (cool dudes playing with fire) think about the fire that came out the side out that Lipo pack. Imagine putting a plastic case around that and holding it.

I like the idea of this post, ideas and suggestions, but how about putting the designers on the spot: What will happen to the mod you designed, the mod you are selling to us,
if a LI-ion event happens? Not enough to tell us Don't stack unprotected cells, don't use unprotected cells, because WHAT WOULD YOUR mod DO if the protection circuit failed and the Li-ion cell blew, What would your mod do???

Rocket

 

[Craig Patterson]

I like the idea of this post, ideas and suggestions, but how about putting the designers on the spot: What will happen to the MOD you designed, the MOD you are selling to us,
if a LI-ion event happens? Not enough to tell us Don't stack unprotected cells, don't use unprotected cells, because WHAT WOULD YOUR MOD DO if the protection circuit failed and the Li-ion cell blew, What would your mod do???

Rocket

I'd love to try! Anyone wanna send me some faulty batteries? How would I recreate the event? I can build a box that I can place it in ... if all I have to do is pull the trigger, I can rig something to hold the button down.

Let me know... would love to try my idea.

Craig

 

[UberDuper]

Just run charging leads into the mod and over charge them. You'll need non-protected batteries and a charger that'll let you set voltage and amps and some way of getting the charging leads into the mod. You're not realistically going to be able to create a situation where the next time you hit the button it's gonna blow.

UD.

 

[Connman]

Paint it yellow and call it Swiss Cheese.

Well my mistake on my box mod actually just made it safer. The fast changing LED hole you could fit a atty connector in.
To fix this I used a piece of the rubber from a old keyboard the keys push down on and it gave me a nice cover for the hole plus it Glows from the LED.

http://i809.photobucket.com/albums/zz17/_Connman_/E-cig Mod Pictures/Picture5.jpg

Think any slow blow would be fine but if I was going to hook the car up to it and massively over charge it like they did in that video. Well that would just be stupid to hold. And since I don`t have health insurance I`ll stick with the protected battery. Well even with health insurance I would stick with protected batteries.

I feel safe with this mod and using these batteries. But we will see what the future holds.
Bic Lighters have been known to go bang, and I still used them daily.

 

[WillyB]

Paint it yellow and call it Swiss Cheese.

Well my mistake on my box mod actually just made it safer. The fast changing LED hole you could fit a atty connector in.
To fix this I used a piece of the rubber from a old keyboard the keys push down on and it gave me a nice cover for the hole plus it Glows from the LED.

http://i809.photobucket.com/albums/zz17/_Connman_/E-cig Mod Pictures/Picture5.jpg

What's that glowing stuff oozing out the side? Is it radioactive?

 

[Silverthorn181]

I think there are some misconceptions of where the danger lies with a venting battery. The "explosion" is less of an explosion and more of a venting.

As RM suggests unless the venting gasses are contained in a container that allow them to build force before they fail (ie. pipe bomb) there is far more danger from the flame, the hot gasses and the waste material than there is of a cart being forced down your throat. Not saying it couldn't happen. Just saying that the more imminent danger is from serious chemical and thermal burns.

Venting in opposite directions in an attempt to lessen the propulsion is in fact increasing the likelihood of burn injury. In a plastic box the box will be all but transparent to a venting battery any way so no venting is really required. Just allways use protected batteries and a cut off switch....

 

[Rocketman]

And keep your cartridges and atty clean.

last thing you want is to swallow a DIRTY atty.

(and ya'll have just been introduced to Rocket Humor)

R

 

[Israfil]

I do like the dispersion effect of having the holes in multiple locations with different angles on the exterior of the box, but this does still stand a decent chance of burning you a bit.

My suggestion would be to drill several small holes on the bottom of the box, allowing gasses/flame to be vented away from the face. To my knowledge these do not explode with enough force to propel the battery box into the face. (not enough to cause damage even in the worst case scenario) If drilled on the bottom (thin side not thick side) the hands would also be fairly well protected from anything that doesn't literally incinerate the box. It would be a good idea to drill in at different angles on that end to disperse any spray more evenly and reduce any chance of unidirectional thrust. (I am talking about many very small holes here)

As it goes in the mod forum I must suggest always using protected batteries...no need to live dangerously.

 

[ZoSo15]

The little hole in the bottom of the battery box where the original wires went through is good enough for me. If anything ever happened it would probably give me enough time to throw it on the ground. I'd never recommend making the holes point anywhere near your face. As mentioned, burn injury is much more probable than an explosion so I would think you would want any holes pointing away from you.

 

[Craig Patterson]

The little hole in the bottom of the battery box where the original wires went through is good enough for me. If anything ever happened it would probably give me enough time to throw it on the ground. I'd never recommend making the holes point anywhere near your face. As mentioned, burn injury is much more probable than an explosion so I would think you would want any holes pointing away from you.

Who said anything about holes pointing toward the face? Only time that would happen is if you drilled holes on the top near the atomizer. On the sides, the worst they would to is vent some on the hand, but if there are enough holes, the force/gas/flame would take the path of least resistance. If your hand is covering the holes, odds are most of the blast would come out the holes that aren't being covered.

Basic science...

Craig