Steadily Dropping Resistance? ... On its own?

[MikeB]

I have both a 306 atty and a Boge carto that are steadily dropping in their resistance today. 306 started out at 2.0ohm and has fallen to 1.2ohm; and the Boge started out at 2.9ohm and has fallen 2.1ohm. This has all happend over the course of the day, and started checking them because they were starting to vape hot and harsh, so I've been lowering my voltage all day on the provari. Anyone have any idea why something like this would happen or what would cause it from a physic point of view? I know I could just switch to new cartos/attys but it's not like these are broken yet, and I'm curious as to why...

FYI, checked a few frsh boges out of the box, and one tested out to 3.0ohm, and the other to 2.9ohm. So it's not the provari.

 

[SilentEcho13]

Hmm, do you chain vape?

To me, it sounds like they're nearing their impending doom. Chances are it's a short, and a coincidence that they're both being affected.

 

[genelman]

I wonder if the juice has anything to do with it?!!

 

[six]

usually, a drop in ohms is due to coil wraps touching each other. Often, as carbon builds up on the coil, it changes the shape of the coil a bit and starts bridging coil wraps together.

 

[MikeB]

Hmm, do you chain vape?

To me, it sounds like they're nearing their impending doom. Chances are it's a short, and a coincidence that they're both being affected.

Yep. I'm pretty hard on my stuff. Mostly though it just means a carto lasts me 3-4days instead of a week of two. I get the feeling they're both about to bit the dust too. The 306 I've only had about 5 days though, and the boge was fresh this morning.

 

[MikeB]

I wonder if the juice has anything to do with it?!!

I wondered that too. The boge has been in the same tank with the same juice all day, but on the 306 I've been switching flavors for every vape, so I've decided juice being the culprit is unlikely.

 

[MikeB]

usually, a drop in ohms is due to coil wraps touching each other. Often, as carbon builds up on the coil, it changes the shape of the coil a bit and starts bridging coil wraps together.

Ahh.. this could be. Could be heat too. I've been chain vaping pretty hard today.

 

[SilentEcho13]

Do you use pure VG, or thick, dark juices?

It sounds like you may be able to fix them with a good alcohol bath. I've had atomizers both drop and raise in resistance due to certain juices (like cinnamon or peppermint), and a good bath usually brings them right back to normal.

I use 91% isopropyl alcohol, let them soak for 15 minutes while swooshing them around, then rinse with water, blow them out HARD until no more moisture comes out, and then sit them in front of a fan for 5-10 minutes to dry. After that, regular priming and waiting a minute or two and they're all back to normal. I can't really say much for cartomizers though. They aren't built as "robustly" as atomizers, so once they start dying they're pretty much dead already lol.

 

[MikeB]

Do you use pure VG, or thick, dark juices?

It sounds like you may be able to fix them with a good alcohol bath. I've had atomizers both drop and raise in resistance due to certain juices (like cinnamon or peppermint), and a good bath usually brings them right back to normal.

I use 91% isopropyl alcohol, let them soak for 15 minutes while swooshing them around, then rinse with water, blow them out HARD until no more moisture comes out, and then sit them in front of a fan for 5-10 minutes to dry. After that, regular priming and waiting a minute or two and they're all back to normal. I can't really say much for cartomizers though. They aren't built as "robustly" as atomizers, so once they start dying they're pretty much dead already lol.

Yea, not all my juices, but a lot of my favorites are straight VG and dark, lol. This is worth a shot for the 306. The carto is probably dead though, which is fine. It was in a dark VG too by the way. I'll give the alcohol a try. Thanks!