If the batteries blew up in the SB?

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DaMulta

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Well like a lot of other people I seen what happened to another mod that bit the dust due to battery failure.

http://www.e-cigarette-forum.com/forum/battery-mods/45947-boom-battery-failure.html

It could of been a short that did it, and or a number of other things.


My question is what would happen if it went off in the SB? I remember Trogg saying that he tried to set it off in a screwdriver, but it always fried the wiring before it blew. Now the mod that blew up had wiring, but it blew up yet it did have a resistor inside of it. That mods end cap blew off, and with the SB it's end-cap is towards the top. I don't know if that would make any difference. Heck the SB could just contain the blast for all I know.

Would the SB vent on the button? I hope it would not send the atomizer off like a bullet into my mouth. I know that this issue is rare, but I did take out my 3v batteries in favor of the 18650 battery today......
 

halopunker

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Chad would probably be the best person to inquire about this, I honestly can't give my opinion as I have no idea. As far as the other post, they were using CR2 batteries, which typically aren't protected.

You can also look into LiFeP04 Batteries instead of the Li-ion ones:

One of the main advantages of LiFeP04 Batteries is they will not catch fire or explode with overcharge. They do Sell LiFeP04 Batteries at battery junction and i'm going to be receiving my batch here 'soon'.
 

DaMulta

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Being a SB owner, maybe a vent hole in the casing somewhere might not be a bad idea? Just in cast of PCB failure on batteries. Kinda spooks me, acting like a grenade with no relief from pressure if it ever blows.

Gesagen


I'm thinking about adding a center hole on the bottom now. I'm not sure how big I want to make that hole tho.
 

MarthaT

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Parmacrafter

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I would think so too
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Guess what guys??? The one that blew up was in my hand at the time. As I posted with my original post, there was no heat before the explosion. That was a big part of my point. These batteries DO NOT always warn us by getting hot to the touch through our PV. Sometimes it is just not possible to feel the heat through the PV in time to stop the explosion.
 

Parmacrafter

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Not sure of brand. They were CR2 (unprotected) 880 mah. But as I mentioned in my original post the main thing for all to remember is that ALL batteries can be dangerous. Even the protected ones. Especially if they are used one on top of the other. you are expecting 1 3v battery to push it's power through another battery and add the second battery's power to it along the way.this is kind of like trying to push 6v through a 3v battery. Can you all see where this might be a potential problem????
 

DaMulta

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GUYS GUYS GUYS DO NOT DRILL YOUR SB!

I have posted this before, take a look under your switch. Well here I will show you. Seems I am unable to upload any photos. Will edit when I can


So if a failure did happen the switch would save you? You think a single hole in the bottom would be bad for the SB?
 

cddz

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So if a failure did happen the switch would save you? You think a single hole in the bottom would be bad for the SB?
Well, it is your SB:p Not gonna hurt it any. I sent Rob the pic hopefully he will be able to post it for me. There is a vent under the switch, it has always been there, in every single SB made...... with the exception of the first prototype. The switch would raise at the back(toward the bottom) in the event of a venting battery.
Sorry batteries do not just explode for no reason, there has to be a chemical reaction occur before this will would happen. When you over discharge/charge a battery the chemical makeup changes, making it unstable.
A dead short would have to occur for a long enough duration to heat the batteries to an explosion. Have you ever thrown a battery in a fire? It takes a good 20-30 seconds to heat up to that point.
In the magnum mod two things would have to happen, one there would have to be a short after the switch, in this event the unit would provide no voltage to the atty.... no vapor. Two the switch would have to be left on in order for the batteries to heat to this point(sticky switch).
The first "mod" this happend to was the GG, but as many know it was set up by someone to do it, ie batteries were faced positve towards one another and the switch was shorted.
Steve at puresmoker actually shorted a switch on an unprotected battery and set it out side, he came back in a few hours.... no explosion, just vented.
I have personally shorted an unprotected battery to see what would happen, and as I suspected it just vented. any way just my 2 cents on the subject.
Chad
 

Bandit

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Hey Chad, I have a question.

NOT SB-related. I don't worry about this in the products that you engineer.


On mods that have venting holes say at the bottom cap (like the GG as an example of placement)... I can't help but wonder if this vent hole would "push" the device towards your mouth in the event of an explosion? Kind of like turning it into a little rocket, with the expelled gasses rushing out of the tiny holes turning the device into a powerful projectile?
 

DaMulta

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OK, so there is an o ring at the top with the side out of it under the button.

So when you set on off cddz it was not as violent as the op in that thread said? Just vented when they blew?

Hey Chad, I have a question.



NOT SB-related. I don't worry about this in the products that you engineer.





On mods that have venting holes say at the bottom cap (like the GG as an example of placement)... I can't help but wonder if this vent hole would "push" the device towards your mouth in the event of an explosion? Kind of like turning it into a little rocket, with the expelled gasses rushing out of the tiny holes turning the device into a powerful projectile?


Didn't even think about that. I know that lithium batteries do contain a lot of power in them. If they get water inside of them OMG watch out(I know that is next too impossible, and would have to get passed the inside seal).
 
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cddz

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Hey Chad, I have a question.

NOT SB-related. I don't worry about this in the products that you engineer.


On mods that have venting holes say at the bottom cap (like the GG as an example of placement)... I can't help but wonder if this vent hole would "push" the device towards your mouth in the event of an explosion? Kind of like turning it into a little rocket, with the expelled gasses rushing out of the tiny holes turning the device into a powerful projectile?
Lithium batteries are designed to vent from the positive side. I would not forsee a venting battery having that type of thrust. Notice i said a venting battery, not exploding. If you notice in the threads picture that the battery top blew off, all batteries are designed this way. I cannot answer your question as to if it would push the e-cig into your mouth or not. I am glad to hear the OP is okay.
 

cddz

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OK, so there is an o ring at the top with the side out of it under the button.

So when you set on off cddz it was not as violent as the op in that thread said? Just vented when they blew?




Didn't even think about that. I know that lithium batteries do contain a lot of power in them. If they get water inside of them OMG watch out(I know that is next too impossible, and would have to get passed the inside seal).

No oring, what you see in the picture is the ledge the switch sits on, the black circle is illustrating the notched out section under the switch.
 

DaMulta

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WellI never imagined that a batt explosion would be so violent before I read that thread... so now I do wonder what the effect of vents on the end would make.

Don't wanna lose any teeth or worse because of that.

Again, no worries about my SB in any way.


They make some kinds of Methamphetamine's with these kinds of batteries. When there little labs blow up it's normally due to these kinds of batteries releasing there power when they didn't want them too.

Well I feel safer now that this has been explained about it venting out the side.
 
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