Venting battery mod

[mrtuna]

With all the talk about battery failure I am considering venting my Silver Bullet. I plan to 6v Vape with it using EW rechargable cr123s. I am uncomfortable with no vents. Where would you vent it and what size hole?

Thanks for your help!

[VaporX]

There is no real answer for size yet, as no one has really done testing. but bigger the better there is a lot of energy in a lithium cell

as for position, remember the venting gasses could cause a good bit of force so somewhere that would aim the mod away from your face if it were to fly from your hand(for example not the bottom)

[Blaro]

Before you start drilling, you may wanna consider keeping the SB a 3.7V device, and slap one of the new Magnum atties on it and trying it like that. IMHO, it's pretty amazing how it simulates a 5V vape, without the added risk of stacking batts. Works awesome for me...just my 2 cents.

[Rocketman]

There is no real answer for size yet, as no one has really done testing. but bigger the better there is a lot of energy in a lithium cell

as for position, remember the venting gasses could cause a good bit of force so somewhere that would aim the mod away from your face if it were to fly from your hand(for example not the bottom)

If you vent it at the top to propel it away from your face then the rocket type exhaust plume will fry your face. Some may not care how PRETTY they are AFTER a LI-ion venting experience, but I'm not all that pretty now.

If you vent it along the side to propel it in a spiral then hold it in your NON DOMINANT HAND so you can still wave to people from your hospital bed.

If you vent it from the bottom with a suitable sized vent I doubt there will be enough thrust to propel the entire MOD far enough down your throat that someone could not dislodge it with the Heimlich Maneuver.
Never Vape alone.

Never vape a pipe bomb.

Maybe vent size or blow out plugs should be tested to determine what is adequate.

The Rocketman

[Israfil]

Never vape a pipe bomb.

The Rocketman

HUH? aww.... *puts down the pipe bomb and picks up a molotov cocktail*

[Silverthorn181]

If you must..... The Bottom. ONLY the bottom. If you need convincing have a look in at the other forum of the results of Detonator Rob's mod venting in his pocket with his outwards facing vent holes. A nice black burn hole in his leg. Not a little one. A great big go to hospital one. Note that the vent holes did little to prevent the explosion but only directed venting material into his leg as it blew. The problem with trying to vent nasty hot gases is that they are expanding rapidly and usually are accompanied by a shock wave that makes all but carefully designed vent paths infective. They can do almost as much damage as they are venting as a big bang would. In the event of a slow vent they are great to prevent gas building to the point of bang but in a rapid failure prevention is the only effective solution.

This is real... It has happened and will happen again....

Having said that.............. Detonator........ Think about it!!!!!

[Rocketman]

I'll toss out an idea I use. Little vent, big blowout plug.
Front needs to be much stronger than butt end
Robert's Detonator vents didn't relieve enough pressure to keep entire butt cap from blowing off. The failure of the batteries was bad, the way the flashlight came apart was good. Vents won't be enough if the Li-ion cells let loose. Which end would YOU like to come apart if the MOD is in your pocket? Don't matter really. Which end do you want to come apart if next to your face? That matters. Unless a MOD is designed to totally contain a "worst case blast", partial containment via "shaped discharge path" is the best we can do.
Here is an example: Front is metal, peened and rolled, epoxy back up on inside.
Butt is tapered plug (looks almost like a penny) glued into butt cap.

guess what is going to go first and yes if the single 18650 protected cell goes and it is in my pocket, it will hurt.

Rocket

[Silverthorn181]

Couldn't agree more. Let it out without pressurizing it!! In pocket or in your hand or next to your face. The result is the same. I think the bottom like you have your vents in the picks of your switch mod is best.... Every single time. Far less likely to be venting into something soft and squishy with blood flowing through it!! Side vents make no sense at all!! And as you say an easy blow and or low melt point large plug is best.

What you show in your Switch Mod pics is about as good and as safe as I have seen. The less pressure that can build the better. At least if the device vented in your pocket there would be a very good chance the venting gasses would blow (Under far less pressure) past your soft squishy bits and not at 90 degrees directly into your leg. Same in your hand. Gasses out the back not into your fist!!

Path of least destruction.

You've built in redundant safety!! Protected Bats and an intelligent just in case system should the protection fail!! I also think we tend to get just a little complacent around protected Batteries. Safety precautions on all battery powered devices is not lost.

[mrtuna]

Ok, ok!
Now that you have scared to crap out of me. It is not worth 6v to have a battery blow out. Is it just stacking the batteries or do I risk it with my 3.7 battery?

Blaro: Magnum attys? Where do you pick up those?

Thanks for the answers.

[VaporX]

i would still not use a bottom vent

these devices are most likely to fail while in-use, meaning a bottom vent forces the mod into your face, your button vent is large but in a full failure would still be a rocket.

an idea:
maybe a mod help together in the middle by strong magnets that "breaks away" in case of a failure?