So I received my first mechanical last Saturday and so far I'm blown away by how long my battery has lasted me. I'm using a K100 with 2.6 ohm carto and a brand new 18350 900mah batt. This thing has lasted me 4 days now, taking about 10 vapes an hour. I will probably need to swap it out this evening with my 18650 as my voltage is around 3.74 at the moment. I'm guessing after it falls off from 3.7v It won't hold constant as long and vapor will begin to suffer at a more rapid rate... Has anyone else experienced a 18350 lasting this long with a similar setup and usage or did I just get lucky with an exceptionally good battery?