Hi, I have bee using the V2 for a couple months, and I love the product. My last "batch" of cartridges I bought right before the Holidays. When I started using the new cartridges, I noticed that it seemed I had to suck (significantly) harder to get a good vapor. I attributed this to the new cartridges, however upon inspection today, I noticed that the tip of the battery (which the cartridges screw on to) looked dirty. It almost looks like soot, and will not come off with a napkin or paper towel. Also, the three small holes (on the threaded end of the battery) that allow the air to flow in and through the cartridge were almost completely clogged. I used a magnifying glass and a straightened-out staple to remove the clog. Immediately, this resolved the "weak" vapor issue, and I now get a better "throat-hit" off the vapor. I can still see that there are areas around the threaded end of the battery that I can't seem to get clean, and am left with a few questions.
1) Is this normal? If not, what am I doing wrong? If so, is there a procedure for cleaning the battery properly?
2) What would be the best chemical solution to clean the end of the vcig battery?
Thanks in advance for any help, comments, and advice! I will post some pictures of what I am talking about later this evening.