Makita XML06Z 36V (18V X2) LXT Brushless 18″ Self-Propelled Commercial Lawn Mower, with BL1850B-2 18V LXT Lithium-Ion 5.0Ah Battery, 2/pk

Price: $969.41

From the manufacturer

Self-propelled with variable speed (1.5 MPH – 3 MPH)
4 bay battery system for 2 times more run time
Integrated L.E.D. battery charge level indicator allows user to monitor battery charge
Provides up to 65% more run time per charge compared to BL1830
Reaches full charge in 45 minutes or less
Price: $969.41