Im using efest 18350's and 18650's so is there any need for it. Am a bit confused as a lot of vids say it goes on the bottom, the fuse os like a penny in size with a button magnet on one side .
well everything seemed to be going well, today however, I am noticing that the the firing button is getting warm, not red hot but warmer than I think is normal. I notice also that it doesn't seem to fire on occasion and get a very weak vape ( if at all) when I use aga t3. It does vape with the igo l at 1.1 ohms. Any ideas or suggestions?