Is this a safe battery?

[card]

The discharge rate is either listed in the product documentation or you can find people who have done bench tests on the internet, usually on flashlight forums. A quick search on Google pulled up this product page for the Efest 18350 max discharge rate Efest IMR 800mAh 3.7v 18350 Battery

Also, the 8c is based on the mAh. So, 8c means 8 times the mAh, in this case 800, to give you 6.4A as the max continuous discharge. In addition, your shortstop has its own Amp cutoff, usually 5A.

So according to ohms law A=V/R, 3.7 v battery divided by a 1.5 ohm coil should only be drawing about 2.47 amps. So why would the Efest be tripping the shortstop?

 

[Jstcriusen]

Defective shortstop fuse maybe?

Have another to try?

I really dont think the fuse can tell if a battery is good or bad. Just trip at its amp limit.
My best guess is its defective.

 

[sailense]

So according to ohms law A=V/R, 3.7 v battery divided by a 1.5 ohm coil should only be drawing about 2.47 amps. So why would the Efest be tripping the shortstop?

It shouldn't. But you may have a hotspot or moving short. Have you wiggled the coil while hooked up to an ohmmeter? This may also explain the inconsistent behaviour.

 

[card]

Found out the problem was the spring which was getting hot and tripping the shortstop which uses a thermal fuse apparently. I measured the resistance of the spring to bottom cap ground and it measured 1-1.5 ohms and should be closer to .1-.2 ohms. I took the spring out popped in the no name 18650 and it works fine now at 1.5 ohms, might even go lower now.

 

[Baditude]

Found out the problem was the spring which was getting hot and tripping the shortstop which uses a thermal fuse apparently. I measured the resistance of the spring to bottom cap ground and it measured 1-1.5 ohms and should be closer to .1-.2 ohms. I took the spring out popped in the no name 18650 and it works fine now at 1.5 ohms, might even go lower now.

Am I understanding what you said correctly?

You removed the hot spring from your battery device?

And, you are not using the fuse?

You just removed the only two safety layers that your mechanical mod had. Now you are relying on a generic battery of unknown quality and using it with a homemade LR rebuildable atomizer coil?

Did you play with fire when you were a kid?

http://www.e-cigarette-forum.com/forum/apv-discussion/437141-mech-mod-acting-weird-bottom-spring-heating-up-no-vape.html

http://www.e-cigarette-forum.com/forum/new-members-forum/424120-first-mechanical-spring-question.html

http://www.e-cigarette-forum.com/forum/rebuildable-atomizer-systems/426176-mechanical-mod-rba-safety-question.html

http://www.e-cigarette-forum.com/forum/healthcabin/437043-new-vapesafe-fuse-2-5-a.html

* Experienced and knowledgable people here have been hinting to you to not use a generic battery because of saftey issues. Apparently you have not taken the hint, and have gone further in potential reckless behavior by removing two safety feature that your mod had by removing the hot spring and vape safe mod fuse. All this and using a homemade coil on an RBA.

Take the good advice of folks that have taken the time to help you practice safer vaping and get some high quality batteries before using a homemade coil.

 

[card]

Let me clarify. The spring turned out to not be a hot spring since it was adding resistance in the mod. Someone in the RBA forum suggested taking it out so I did. Fuse is still being used, otherwise the battery would not be able to make a connection with the bottom cap ground because of the battery wrapping. I am still using the generic batteries since after taking out the spring my 18350s don't fit snuggly enough to make a connection. This will work in the mean time while I shop for good quality batteries and a true Hot Spring.

And yes I definitely did play with fire when I was a kid, growing up in Carlsbad, NM there isn't much else to play with.

Thanks for looking out Baditude

 

[Coastal Cowboy]

Whatever you do, DO NOT ditch the fuse.

We don't want to be reading about your unfortunate incident in the news tomorrow.

 

[sailense]

Yeah, I'd say it's more dangerous to run with the spring than without due to the resistance. At 1-1.5ohm resistance, your spring is now a secondary coil surrounded by metal.