Vapors & Things 400mAh Adjustable With Dial Slim Twist Battery 510 Thread Preheating battery Bottom Twist Battery 1. 5 Clicks for power on/off.2. 3 Clicks preheating the oil.3. Preheating function especially for the thick oil. 4. Twist voltage: 2.0v-2.5v-3.5v-4.0v. 5. Full capacity 400mah with high quality.    https://vaporsandthings.com/products/vapors-things-400mah-adjustable-with-dial-twist-slim-battery-510-thread       Since its inception, Vapors and Things has maintained a reputation of quality products, and the reasons why are apparent in our 510 Thread Adjustable Slim Battery. Our 400mAh slim batteries come in Black and Silver. They are perfect for use with cartridges as well any other pre-filled 510 Tanks. Control your Vapor with...