Found I do not like the dual coil smoke tec cartos.They are battery killers.I am using 2900 mah 18650s and I chain vape 3.7 volt .Any one have any experience with 510 cartos single coil Boge,ikeen vapes Fusion ect.I like good throat hit and flavor and LR.I do not mid getting adapters if the carto is awesome in tanks.Any help would be great.Hope everyone has a great evening