They aren't dual coil. They are single coil LR Boge cartomizers, and the cartomizers worked completely fine for an entire day, but then it just totally stopped. I tried the same carto's that are fresh and still nothing, although what i was originally using was only a day old. Frustrated because i hate it when im left without a vape cuz i shoot right back to analogs and im currently waiting for my other vv/vw device to come back because it had a manufacturing flaw.
p.s. everything with the mod is still attached as it should be, and i know it works because the iclear30 i put on it works(not very well because of the higher'ish ohm's on it)
and sorry i should have been more specific, when i said "the carto randomly stopped working" i meant it worked completely fine and satisfyingly and then it just stopped working entirely, i put it on my friends battery thats at 3.7 and worked totally fine, just not on the mech mod.