Vessel Vape 510 Cartridge Battery The Core arrives with remarkable simplicity yet the same technical precision you’d expect from Vessel. The Core is powered by a smaller, compact battery and similar controls and variability across the line. Vessel designed the Core to give their brand partners an inclusive offering - one that still screams premium and delivers the value-in-hand experience we’ve all come to appreciate. Vessel Core Features: Features a wide 510 crown to accommodate cartridges of all diameters Powered by a high-quality 260mAh 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-C charging port + cable Compatible with Rover Cases Six (6) month limited warranty