The NBC (Vivi Nova Bottom Coil) is a 510 threaded bottom coil tank based after the look of the ViVi Nova Tank, but it is a completely different design. The NBC, using the bottom coil, provides a nice warm vapor, with a superb clean flavor, and reduced wicking issues. Also different is the body design. While the top of the NBC unscrews, the tank is still designed to be refilled from the bottom.
To fill the NBC: unscrew the bottom of the tank, hold the tank upside down and fill with about 3.5 ml of eLiquid. With the tank mouthpiece-end down, screw the atomizer head back on. To replace the heating element unscrew the bottom of the tank. The heating element unscrews from the base.
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