Recommended for properties to 3/4 acre This lightweight, quiet-running self-propelled, rear-wheel-drive mower has variable speed control for mowing at comfortable speeds; SmartCut Technology that constantly monitors grass conditions, then automatically adapts to provide the perfect amount of power needed to get the job done; cutting blades that wont bog down in tall, wet, or thick grass; and dual battery ports with automatic battery switchover for longer run-times. Greenworks exclusive Intelligent Power provides constant, fade-free power with no dangerous emissions; and combines brushless motor technology, lithium-ion battery power, superior cutting, and ultra-fast control systems for powerful output. Two 80V 4.0 Ah batteries and dual-port charger sold separately. Battery is compatible with 75+ Greenworks 80V products. Life. Powered. By Greenworks.