Thanks
Just one last question please
All my 18650's are flat top
Will this be a problem?
This is what they wrote to me
Hey Larry,
We actually do have them but they're hidden on the site for some reason. Try this link: http://www.provape.com/ProVari-3-and-Classic-Extension-Ring-p/extringdealer.htm
It can be done although I don't recommend it. The mini was really designed for an 18350 or 18490 battery but you can use an 18650 if you have either 2 extension rings or 1 extension ring with an extension cap.
I hope that's what you needed to know
Best Regards,
Brandy
Hmmm? That link takes me to a mail server page for roadrunner.