Say hello to the new 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 Battery Features: Fits 1-3 Gram Carts 650mAh Battery Magnetic Connection 3 Voltage Settings Click Activated Type-C Charging 10 Second Preheat Box Includes: 1 Battery Type-C Charging Cable 2 Magnetic Connectors Connect the magnetic connector with the threads closest to the bottom of the cartridge. *Caution: Using the preheat settings can heat the magnetic connector. Wait for the cartridge to cool before disconnecting the connector from the cartridge base.