I was building a dual vertical coil setup earlier on my vape jam rda and the coils were perfect, I wicked them, juiced them up and fired it on my ohm reader to measure the voltage drop and within half a second of that first pulse my button got hot, not enough to burn me but hot. At the same time I feel it the ohm reader is reading 0 ohm. I quickly unscrewed the button from my mod and put the battery inside of a WW2 ammo box. The battery was pretty hot, not enough to melt the wrap or anything, visually it's fine. I just checked the voltage and it's reading 4v (it's a sony 18650 vct4). My question is this, do you think the battery is safe to reuse?
Question about battery's
- Thread starter Saywhat
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Just realized I left out some info, the coils were .76 ohm 28g and it's a tree of life mod
Sounds like a short somewhere. Inspect your coils make sure they arent touching things they shouldnt. How do you know they were .76 if you fired it and the resistance read 0 (dead short)? You should always check your resistance before ever putting it on a mod and test firing. Lesson you just learned and thankfully your battery didnt vent. The battery should be fine after a cool down. But to be safe wait till tomorrow and leave it in the ammo box.
I am not familiar with your atty, but you mentioned you were building verticals. Is it possible the coil bottoms were touching the deck? or when you put the top cap on the top of the coils are touching somewhere?
I'd always recommend getting a device that can measure resistance without having to fire it. A good quality DMM doesn't cost much and can prevent these type of issues.
As for the battery, I am usually one person that always errs on the side of caution - but in this case, I would probably reuse that battery. Just monitor it as you vape, check the voltage, watch it when charging, meter it again coming off the charger etc. etc.
As for the battery, I am usually one person that always errs on the side of caution - but in this case, I would probably reuse that battery. Just monitor it as you vape, check the voltage, watch it when charging, meter it again coming off the charger etc. etc.
I knew the resistance before I test fired it, I build my coils on my ohm reader. The coils were fine size wise, didn't touch the deck, lid or walls. When I pulled the cotton from the coil there was a peice of kanthal in it, I'm thinking it was from clipping my leads
...so you're saying your mod shorted without an atty? Yeah, there's something going wrong... are there any burrs/shavings in the mod or switch area? Are the battery wrappers intact, and does the shrink wrap overhang the bottom edges of the battery? Is the insulator for the 510 pin intact?
That ended up being the problem. The switch shorted the mod because the insulation wasn't hanging enough over the bottom. The shop I go to re wrapped the battery for me and it's working fine now. Ended up buying a new battery anyway.
There is no blemishes on the battery's and they are reading perfect on my DMM. 4v, 30a I'm hesitant on reusing them still.
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