I'm trying to build a box mod and I want to be able to do up to 50 watts with variable voltage/wattage and have an ohm meter. I can't seem to find any chips that will let me do a .1 build on it either. Also I was wondering if I used a battery pack that would have a micro USB charging port instead of using 18650s, if I'd be able to vape while charging. Any help would be great. Thanks
