The Atmos Power is an advanced multi-function battery device that is a variable voltage battery and power bank in one. It features a spring loaded connection and LCD display that manages the 2600mah battery. It also includes a special USB Charger that utilizes both micro and regular USB connections for charging all your electronic devices. The Atmos Power's high-quality lithium ion battery features 510 threading, which makes it compatible with most heating chambers and cartridges. Because this is a variable voltage battery, you can dial in the precise voltage level you want for a great vaporizing experience.