Just a quick update..... tried that same atty on my Ego...got the same thing, however , not as pronounced...prob due to the 3.7 volts over my Provari's 4.3ish that I vape at. The two suspect attys were the last two in a bulk box I had. I have opened a new bulk box, and attached one to the Provari without any incidences in two days.......I guess they were just faulty attys, bad ciruit in them??? Hell if I know. I just know I didn't want to go back to the Ego...... just not enough punch in those things...Great starter kit, but, we all move on.