Kobalt 80-Volt 21-in Lawn Mower Dual battery port with auto switch over pulls power from a second battery once the first is depleted to eliminate downtime LED headlights illuminate your path in low light conditions Auto-sensing technology automatically adjusts motor performance for greater power or runtime based on changing grass conditions from area to area Single-lever height adjustment lets you conveniently choose from 7 separate height adjustments On-board indicator helps you monitor remaining battery charge; collapsible handle for convenient vertical storage Brushless motor delivers more power and torque to help cut through the thickest grass 5.0Ah battery and charger included 5-Year limited tool warranty and 3-year limited battery warranty