Hey ECF, unfortunately I lost my vape a couple weeks ago and have been smoking cigarettes more than I would like to so I am on the market for a new mech mod. I was very close to pulling the trigger on the copper hades but I have begun to doubt the superiority of the 26650 battery. The sony vtc5 is 2600 mah and has a better continuous amperage rating than the best 26650 batteries on the market which typically range around 3500 mah. I am hoping that someone that has experience with both 18650 and 26650 mods can chime in on how much more battery life they get from a 26650 vs a 18650 and any other benefits to 26650's.