After trying a couple of kits, which turned out to be clones and the local dealer wouldn't stand behind them. I settled on the Evod tank and the Spinner II battery. You can find them on eBay but verify they are authentic. Vision has a scratch off serial # to verify authenticity. Thank heavens for the eBay guarantee. I sent two back. Ask the question of authenticity before you buy. eBay is also the cheapest place to buy the replacement coils. Ask the same authenticity question. The clones are not worth a darn.I cycle through 3 batteries and have a couple of tanks for each flavor I use.