I have a new Genesis style rebuildable tank. It came with a pre installed wick and coil. I filled it half way, put it on a Precise+ 18650. It worked great, after a few hits there were plumes of vapor, then nothing at all, not even a sizzle. I tried three different batteries and nothing. So I tried it on my BB it worked for a bit then quit. I even tried using a 510 to 510 adapter and it made no difference. I even tried it on my REO, using the adapter and still nothing. It is not a short or the REO spring would have collapsed. Does anyone have any idea what the problem might be? The maker of these has quite a fanclub. I guess I am not one of them.