Re: Nitecore TUBE - a brief overview.
FedEx shipped me some 18650s "inside" a VP2.
Most package services will only ship batteries inside devices. If in doubt, check with whatever company is going to ship your package.I think you would have had to be super quick to take advantage of the intro deal - the 100 or so on offer went pretty quickly. Fasttech have them for $8.45 each ($7.73 if you want 5 or more). Trouble is, they don't seem to ship things with batteries these days - certainly not to the UK - not sure about Oz.
FedEx shipped me some 18650s "inside" a VP2.