Technical Specification Item Walk Behind Mower Drive Type Self-Propelled Cutting Width 21' Discharge Side, Rear or Bag Cutting Height 1-1/2' Handle Adjustable Front Wheel Dia. 7' Front Wheel Width 1-11/16' Rear Wheel Dia. 9' Rear Wheel Width 1-3/4' Battery Type Lithium-Ion Run Time 45 min. Battery Voltage 56 Charge Time 30 min. to 1 hr. Battery Amperage 5.0 Standards cUL Listed Includes Charger, Battery Compliance and Restrictions Hazardous material - General This listing is for each. This item requires special shipping, additional charges may apply.