DEWALT DCCS690H1 40V 6AH Lithium Ion XR Brushless Chainsaw, 16" Powerful brushless motor, powered with a 40V Lithium 6AH battery Low kick-back 16" Oregon bar and chain, with a chain brake for kick back protection Auto-Oiling with Lubrilink and Lubriwell for continuous lubrication Tool free chain tensioning and bar tightening knob for proper bar clamping force Variable speed trigger; Weight :13.2 lbs , Bar Length - 16 inches *Maximum initial battery voltage (measured without a workload) is 40 volts. Nominal voltage is 36