Resurrecting this thread because I think the info is important, especially given new releases of small mods coupled with sub ohm tanks.
Safety is important and it's
vital that you use the right batteries, but if you love a small form factor and a decent cloud, the situation isn't as bad as these earlier comments imply.
I have a 0.5 ohm build on an 18350 tube mod and I get a half day of vaping on it. So two batteries a day. Vapor is slightly diminished after a few hours on the same battery, but not enough to bother me. This is on a tank that takes the 0.5 ohm Joye eGo ONE CLR heads.
Now granted, I'm not a chain vaper. I typically vape while driving in to work and then don't vape again till lunch time, and then a bit on the way home. After dinner, I throw a new battery in and I'm good to go for the rest of the night.
At 0.5 ohms resistance and 3.7 volts, you're pulling 7.4 amps. This is the average and most important calculation you'll need to be aware of with the 0.5 ohm CLRs on your small mod.
There are three safe 18350 batteries for this configuration:
Efest 18350 700MAH
10.5A purple wrapper
The
NEW AW 18350 800MAH
12A red wrapper with AW holographic sticker
Tensai TN18350 HP 700MAH 20C/
14A blue wrapper
Tensai's are clearly the best but the problem for US buyers is they don't seem to be available through any American suppliers (yet). I've seen them on websites sourced from Italy, Germany and Greece - the shipping costs to get them here negate the value, short of a group buy. (Actually someone can make a nice profit by distributing these stateside.)
This is why I am passionate about small mods with big vapor: