Mini Slim Battery The Mini Slim Battery is a lightweight, versatile power source designed to seamlessly power vape pens and 510 threaded cartridges, perfect for on-the-go use. Its 200mAh battery guarantees steady vapor delivery and compatibility with a wide array of cartridges for consistent performance. Features: 200mAh Battery Power 3.7V Max Power USB-C Charging Cable Included Compatibility with 510 Threaded Cartridges *Not Compatible with 2.1A Fast Chargers