the Yocan Flat Plus is equipped with a universal 510-threaded connection which allows owners to attach a wide variety of coils and atomizers to the device. That said, it’s the perfect vaporizer battery to use with your pre-filled and refillable cartridges as well as your wax atomizers and coils. It has a cartridge resistance of 0.8 Ohms, which means that you can connect pretty much all commercial cartridges on the market today. 900mAh Battery Capacity USB Type-C Charging Technology Variable Voltage Setting Pre-heat Setting 15-second Safety Cut Off New Square-shaped Design 510-threaded Connection