The dcc works on the box mod. It's regulated at 5v 3a. Just not on the unregulated flashlight mod. The dccs are 1.6 total, 3.2 ohm each coil. The joye atty I believe is 2.5, or maybe 2.2 I'm pretty sure its not a knock off. Don't people stack batteries for HV 8v mods? I thought I've seen it before
Your regulated box mod will supply about 3 amps (5 volt into 1.6 ohm is really 3.125 amps) to the DC. That's about 15.6 watts.
When you try and hit the DC with 8.4 volts, the cell voltage will sag even if using gaint batteries, but with the 14500 stack you are trying to send over 5 amps into the DC, those little cells will not do it. If they are unprotected IMR high drain cells, they will try. That's overloading them but they will try. Maybe even get 6 volts out to the DC. But since you say it don't vape on the stacked battery flashlight you probably have PROTECTED cells with a little circuit board mounted to the negative end of the cell. One of the features of a protection circuit is to turn off the cell when current goes too high. Cheaper 14500 cells will probably cut off at 2 amps, while the more expensive ones about 3 amps. Try and draw over the cutoff limit and instead of voltage sagging, the cell cuts off.
Yes people do vape at 7.4 volts (the loaded voltage of a double stack of 3.7 volt cells) but usually with High Voltage attys/cartos of 4 to 5 ohms. A 4 ohm atty at 7.4 volts needs less than 2 amps. No cut off problem there.
Just wait for one of the "real men" to come in and say there mod puts out 8 volts and they use Low resistance cartos and use terms like "knocks the top of my head off" and things like that. Heck, 30 to 35 watts for them is nothing
