Greenworks 16-Inch 40V Cordless Chainsaw, Battery Not Included 20322 Brushless motor provides your tool with longer run-time, more torque and more power. This leads to less wear and tear, extending the life-time of the tool. Battery and charger sold separately Brushless motor delivers 30% more superior torque for the greatest cutting performance Innovative brushless motor design offers 70% less vibration for user comfort while working Chain brake, hand guard and quick release trigger offer additional support for user safety. Run time 2Ah-30. Chain speed-11 m/s Compatible ONLY with GreenWorks G-MAX 40V Battery models, 29472 and 29462 and G-MAX Charger model 29482