The Core Battery by Vessel is a vape pen battery designed for use with all 510 thread oil cartridges. It features performance air intake, smart battery LED indication, 4 Power Settings, a long lasting 260mAh battery, and modern USB-C charging. 

The battery provides exceptional airflow, variable voltage, and works with 510 oil cartridges.

• Button activated with four Power Modes: 2.4v / 2.8v / 3.2v / 3.6v
• LED light indicator shows power modes
• Long Lasting 260mAh Li-ion Battery
• USB-C charging (charger is included)
• Universal 510 threading for all oil cartridges

Charge it. :)