I have a Joyetech Cuboid 150W with a .4 ohm Aspire Cleito and two 3.6v 18650 LG HG2 Batteries, using DIY PG-free e-juice. I have the Cuboid set on the watts setting because I've been trying different levels between 45 - 80 watts to find a sweet spot. When I change the watts, my 3.6v batteries change automatically,between 4.7-5.3v or so. Also, when I fire, the amps climb up to 12 or so. My question is this: regarding all the calculators and charts and graphs and specs out there on battery safety, how am I supposed to find or stay in a safe zone if all those variables change automatically? Is the Cuboid made to adjust itself based on the batteries and vaping style? Thank you in advance for helping me keep my face intact.