First, a clarification: The "Vapor King eTank" sold by
VaporKing.com is a
three-piece model (battery, atomizer,
tank) identical to the Joye
510-T, just as their older "Vapor King" (also three-piece: battery, atomizer, cartridge) is identical to the Joye 510 ... although Vapor King's may not be manufactured by Joyetech. The
tanks in the eTank/510-T are basically clear cartridges without polyfill.
The better-known "Vapor King" from
Vapor4Life is their branding of the
two-piece (battery and cartomizer)
Kr8 model.
["cartomizer":
integrated cartridge and atomizer]
Two very different (and incompatible) e-cigs, which unfortunately share the same name. [To further the confusion,
VaporKings.com is a
third supplier, which also sells the Kr8, 510, and 510-T models, among several others.]
Clear as mud ... right?
If you have the "eTank" from VaporKing.com (i.e., a 510-T), this video by Michael (cozzcon) can guide you in filling the tanks:
FYI: Suppliers like
LiteCigUSA,
Good Prophets,
Goodejuice and
Cignot sell the 510-T starter kits for
$30 to $35 less than
VaporKing.com's eTank. If you like the eTank, you might want to consider getting replacement parts from any of these more reasonably-priced suppliers.
However,
I don't think much of these tiny tanks myself or the old 180 mAh, 3.2V skinny 510 (or 510-T) battery. If and when
you feel the same way, check out the 750 mAh, 3.7V
Riva-510 from
Liberty-Flights ($30 for full kit)...
...and any of the good 510
cartomizers (Boge or Smok Tech) sold by many of the suppliers mentioned.