Hello—am I calculating correctly? I now have a Jackaroo mod that takes a 21700 so I ordered the Molicel 21700 P42A. Someone on the forum helped me out once before and here is the calculation I used. I figured in at 30 watts –I am usually between 23 and 30 watts 30 watts/3.2 battery cut-off voltage/.9 - 90% efficiency = 10.4 Amps (30)(3.2)(.9) ---max wattage to be used is 86.4 What about my 2 battery mod --is that calculation for each battery. For example, I ordered a Geekvape Aegis X that takes 2 batteries so If I had that same calculation would my wattage be 86.4 per battery?