Black and Decker BDCGG20C Cordless Glue Gun - Battery Not Included 20V* max lithium technology provides up to 3 hours of battery life Powerful 125W heater allows you to lay long lines of glue with ease Fast 90 second heat-up, ready to work by the time you walk to your project Precision nozzle allows you to place glue exactly where you need it Part of the 20V* max system  a system that demands attention