Shorts? Venting??

[moshiri94]

What exactly does a short entail? I've been vaping for a year now, and am about to get into RBAs and everyone's always warning about shorts without explaining what a short really is? Are my teeth going to blow out of my mouth?
And what exactly does venting do? What causes it? Is a battery/vape usable after a battery 'vents'? I have an iTaste MVP and I don't see any vent holes like I did on my Groove, eVic, Silver Bullet or ZMAX.. I know the Silver Bullet's button caves in and the spring collapses when it needs to. Is there anything I should not do in order to avoid venting/shorting? Sorry for the novel.

 

[Rickajho]

A short, basically, is making electrical contact between the battery positive and negative terminal with no load (resistance) applied. Doing that is what can make any battery - not just Li-On - overheat and explode in a matter of seconds.

With any device, including rba's, a short in the device is a no-no. A shorted atty is bypassing the resistance of the coil, providing no load and that can be dangerous when connected to a battery.

The specific potential danger of RBA's, beyond shorting, is the lower and lower you go on resistance the closer you are getting to what is for practical purposes a short. If you are trying to create a 0.30 ohm coil there is very little room for error.

 

[moshiri94]

A short, basically, is making electrical contact between the battery positive and negative terminal with no load (resistance) applied. Doing that is what can make any battery - not just Li-On - overheat and explode in a matter of seconds.

With any device, including RBA's, a short in the device is a no-no. A shorted atty is bypassing the resistance of the coil, providing no load and that can be dangerous when connected to a battery.

The specific potential danger of RBA's, beyond shorting, is the lower and lower you go on resistance the closer you are getting to what is for practical purposes a short. If you are trying to create a 0.30 ohm coil there is very little room for error.

So is there any way to know when I'm about to short out? I'll probably only build around 1.4 ohms, maybe 1 ohm if I feel b*llsy one day. What can I do as far as building a coil to ensure I don't cause a short? Good to know there's a bomb on my person at all times...

Sent from my SAMSUNG-SGH-I747 using Tapatalk 4 Beta

 

[Ryedan]

In addition to what Rickajho said, some more information on shorts can be had on Wikipedia here.

There is no way to know that a short is about to happen. It's either there or not, nothing in-between. After a few months of using a RBA I still have shorts with a new coil. For me, there is no way to avoid them, I just got much better at identifying and handling them after a while. I make my coils at about 0.8 ohms and use MNKE IMR 18650 batteries that can output 20 amps. If I pushed them over 20 amps for long enough they would get real hot and if I didn't stop the discharge they would vent hot gas. I use a K100 which has ample vent holes in it, so I do not expect this thing to ever explode. I still have all my teeth and don't plan on loosing any anytime soon

If you can see the coil when it shorts you will see a 'hot spot', or an area of the coil that is brighter than the rest of it. If you have covered the coil and are vaping you will get burnt hits no matter what orientation your PV is in. In either case, stop and fix it immediately. There is a whole lot of information in the RBA forum here. It would not hurt for you to start reading the AGA T thread in that forum here. Just start going through the posts and you will find the good ones fairly quickly.

 

[MechTech]

I have a k100, running dual coil at 0.4 ohms with a mnke battery. I've been vaping fine for awhile and everythings been fine up until 10 minutes ago, vaped the k100, went good, then next vape, wouldn't fire. Button was getting hot fast! So I hurried up and took out the battery and let it sit to let it cool.

I checked the atty, everything seems ok and looks ok. I screwed off the atty and looked in the k100 contact part and this white rubber ring was chillin in there and just fell out. Never noticed it before.

How do I check for a short on the atty using a multimeter?
and is this mnke battery still good/safe to use?

Thanks guys

 

[MechTech]

So I took the atty off and tried it on another mod with an efest battery, and the atty fired up fine, put it back on the k100, and the battery got hot instantly. So it must be the k100, or the battery (maybe a bad battery? the charge is at 3.9) I'm guessing I shouldn't use the battery anymore since it got real hot twice yeah?