I have a voopoo drag with the gene chip in it. I recently purchased a rda and a kit along with wire and cotton. I have researched ohm law and looked at coil building calculators. I have two 18650 batteries with 20 continuous and 30 pulse amps. they are both 3.7 volts. I'm confused as to since i have two of these in my mod if the voltage doubles or the amps or both or neither. If anyone knows and can help, thank you.