I've been using a M401 with a USB passthrough for over three years now. The batteries never lasted more than 30 minutes at most for me, which is what I orginally started with, so I quit using them. I really like the USB, it is so much more convenient. I only vape at home, but I have a usb battery pack if I go out of town. I'm starting to get really tired of the atomizers for the M401 being so unreliable. Some work great and last for weeks, some don't work at all, some barely work. I'd say that at least 50% are bad in some fashion. I also buy empty cartridges and fill them myself. I'm really interested in the new clearomizers that can be filled and don't have the "cotton" in them. Has anyone had any experience with the new clearomizers? Are there any brand that will work with a USB passthrough instead of batteries? Is it worth switching to something totally different? I've been buying my USB's, atomizers, cartridges, and juice directly from a supplier in China. I usually buy enough to last me about 6 months. Any info or suggestions would be greatly appreciated.
