Our Greenworks 20 in. Chainsaw features a high-efficiency 80V brushless motor with electric start which provides more power, torque, and longer life without the hassle of gas. Equipped with 20 in. bar and chain for dependable performance. Automatic oiler easily applies oil to the chain keeping it lubricated. Mechanical chain brake halts the chain movement to prevent accidental kick back. This chainsaw is compatible with the Greenworks 80V system of 75+ tools and batteries and is backed by a 4-year warranty. Zero gas smell. Zero pull cords. Zero maintenance. Zero pollution breathed. Zero time wasted."