Smok V8 Baby-X Q2 Coils The Smok V8 Baby X Q2 Replacement Coils are designed for the Smok TFV8 X-Baby Beast Tank, a dual core coil for a massive clouds and great flavour. With a resistance of 0.4 ohms, ideally powered between 55-65W but capable of firing upto 80W. To achieve the best vapour clouds and taste of your favourite e liquid we suggest that coils should be replaced every 1 to 3 weeks, depending on the frequency of usage