Ryobi RY40511 40V Cordless Brushless Lithium-Ion 14 in. Chainsaw Works with all Ryobi 40-Volt lithium-ion tools and batteries. 40-Volt lithium-ion compact battery and 1 hour quick charger included. Brushless motor for increased torque and gas-like power. Cutting speed of a gas chainsaw for faster cutting. Variable speed trigger for user control. On-board tool storage for quick chain adjustments. Side access chain tensioning for easy adjustments.