The 510 Battery by Urb. Designed to conceal the cartridge, the battery neatly fits 1 – 3 gram cartridge sizes – while featuring a debossed Urb logo on the textured handle. Activate your battery with one simple click. This 650mAh battery features a 10 second preheat setting to combat clogged cartridges. Try the variable heat settings to customize your experience. Easily charge your battery with the included Type-C charging cable. One full charge lasts about 5-6 hours. Use the magnetic connector to fit any 1 to 3 gram cartridges.

Voltage Colors:

Green is the highest voltage (3.5v)
Blue is the medium voltage (3.3v)
Red is the lowest voltage (3.0v)
Voltage Settings:

Low voltage setting: the LED indicator blink once
High voltage setting: the LED indicator blink twice
Variable Heat Settings:

2.8V
3.2V
3.6V
Click Settings:

5 clicks on
2 clicks pre-heat
3 clicks variable voltage settings