Iconic Cartridge Battery - Dragon   The iconic dragon battery for Cartridge is one of the newest 510-thread batteries with a unique design. It comes in rich colors that you will surely love and features you will enjoy. This cartridge battery is equipped with adjustable temperature settings, a long battery life, a wide range of voltage options, and much more.    Product Details:  500mAh  Variable Voltage - 3.2v , 3.7v , 4.1v USB - C Charging Port  Compatible up to 2g carts  Available in 5 colors