So ive had this k100 for a few days now, and its been working great. Then all of a sudden it stopped working. So i charged the battery and put the carto back on, and still nothing, not even a sizzle. I put that carto on my ego t battery and it worked fine. So then i put my protank 2 on the k100 battery and it worked fine. Kinda suspicious huh? Everything works except when i put the "stock" carto on the k100 battery. I tried messing with the tightness of the bottom section and etc. still nothing, even tried a new carto... Nothing. Any suggestions?