This exclusive 510 threaded rechargeable battery is perfect for use with both pre-loaded and ready-to-fill cartridges. The lithium ion battery boasts an output of 3.5v and 9w, making it ideal for all-day vapers. The sleek, matte black finish provides style and the compact design allows for discretion. The JUJU features buttonless activation and an LED battery indicator. The unique included charger allows the device to be charged upright, ensuring the cartridges are kept in peak condition. The JUJU has been quality and safety certified by the UL and is recyclable via the TerraCycle program.