Hands were shaking, heart was pounding and palms were sweating but I was unable to stop myself once I had added it to my cart. I may get divorced in the morning so I hope me and my new Provari will be happy together. How long will an 18650 last a heavy vapor on a 3ohm SC in a 6ml tank? I don't know how many batteries I need to designate to it for a hard days vaping. Hurry up and reply so I can order my batteries before my husband wakes up and takes away my debit card and puts me on time out.