Black vape pen battery by Vessel. Part of our expedition series, this 510 thread battery is engineered for the adventurer. Features black anodized aluminum and knurled grip design for a commanding appearance. The new release features a wider transition module to accommodate wider/larger cartridges. Features a protected, cartridge drop-in design Fits most 510 thread cartridges (included cartridge is non-functional and for merchandising purposes only) Powered by a high-quality 300mAh lithium-ion rechargeable battery core 3-LEDs indicate battery life and power settings Four (4) power/voltage settings (2.4V, 2.8V, 3.2V, 3.6V) USB magnetic charging port + cable Compatible with Base Charger and Rover Cases Dimensions: 4.3"L x 0.5"D Weight: 37g Six (6) month limited warranty Patented