Greenworks 14-Inch 40V Brushless Cordless String Trimmer, Battery Not Included ST40L00 Up to 45 minutes of run time with fully charged 2.0AH Battery, Not Included Brushless motors are more reliable and deliver more power, longer run-time and longer life than their brushed competition Light weight and easy to use Battery and Charger not included, Compatible battery and charger models 29462, 29472 and 29482