Ok, I am having trouble with passthroughs not working, Tony sent me replacements which I just received but they do the same thing. when I plug them in they blink 3 times, cool, and if I press button they light up, but when I screw an atomizer into them and press the button they nano blink once when the button is pressed and once when the button is let go and that is it. I have tried every usb connection in the house, LOL, I am able to charge with my computer ports and all the wall chargers work great so I am very stumped as to why these won't work. Any help would be greatly appreciated. To me they act like something is faulty with the circuit at the atomizer connection. If I unscrew the atomizer to where it doesn't make connection the led will light up but as soon as the atomizer connects there is nothing. These are standard atomizers not the LR versions. Has anyone else had these problems. Thanks everyone