Black and Decker LCS120 20-Volt Lithium Ion Cordless Chain Saw,Includes 20v Battery Makes up to 150 cuts on a single charge, up to 1-1/2-inch diameter Powered by 20-volt MAX lithium-ion battery, with longer lifespan and charge retention than NiCad batteries Handles both soft and hard wood measuring up to 8 inches in diameter 8-inch reduced kickback bar and low kickback chain 2-year limited warranty; includes battery and Energy Star-qualified charger ; Allen Wrench is included