i recently purchased a new dimitri box mod after messing up my old one, (still works just scratched the paint and I'm OCD with things like that) any I put the same build on the new one in the same atty with the same batteries and it shorted one of my batteries. Took it apart and noticed the machining on the actual fire button/switch wasn't brilliant, left over metal that hadn't come off during threading to be precise. I have sorted that out but need to know if and how I can test the fire switch now with a multimeter without trying it with another battery in there. Thankyou in advance