I recently bought a cherry bomber mod (i know, I know its dangerous). anyway the rda wouldn't tighten all the way so i unscrewed it and the whole threaded part and plastic ring in the top came out. I got everything put back together and now the 18650 battery wont fit in the terminal closest to the firing button. And the rda still wont tighten all the way. I have the screws on bottom as loose as i possibly can. The battery will fit on the other side though. Id like to run both 18650's