The 16" 40V Brushless Chainsaw includes features to make your cutting experiences just as efficient as a gas unit, with the convenience of battery-powered operation. With a 4Ah, high-capacity 40V lithium battery, and a brushless motor, this saw delivers the fast cutting speed and higher torque you would expect from a gas model. With features like side access chain tensioning, an automatic oiler, mechanical chain brake and on-board tool storage, you'll experience easy, comfortable operation for any clearing jobs. As part of the RYOBI 40V system, it is compatible with all 40V batteries and chargers. The tool is backed by a 5-year limited warranty. The battery is backed by a 3-year warranty.