Quickly mow up to one-half acre on a single charge, then fully recharge batteries in just 60 minutes. This lightweight, quiet-running push mower has variable speed control for mowing at comfortable speeds; intelligent power senses grass conditions to send optimal power to the blade maintaining a consistent speed that wont bog down in tall, wet, or thick grass. 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. Includes (2) 4.0 Ah batteries and dual-port rapid charger.