Mclane Cordless Electric Battery Powered Edger 36 Volt Battery Equal to 3.5 HP Gas Engine Runs at least 1 1/2 to 2 hours on a charge depending on workload No Extension Cord, No Gas, No Fumes, No Oil mess. Ready to use by a flick of a switch. Chip Resistant Baked On Powder Coating Enviromental Friendly, 0 EMISSIONS