Innokin Endura T18E Starter Kit The Endura T18E by Innokin has a decent 1000mAh battery capacity and a 2ml tank made from Pyrex glass, which means you don't have to worry about some of the more acidic flavours causing a problem. The main difference between the T18E and its predecessor the T18, is the size of the ('Prism') tank and slightly different coils. This version complies with the European TPD. The coils feature Japanese organic cotton coils and the tank is filled from the top which is quicker and cleaner. This popular electronic cigarette kit is very simple to use and gives decent flavour with standard e-liquids (anything from 30% VG to 50% VG blends).