Designed in California 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