Ryobi 48-Volt Self-Propelled Electric Mower for $284.05 shipped after code TCX44HI2.  Here is a screenshot for your reference.  This Ryobi 48v cordless lawn mower features a 20" steel deck with adjustable height from 1.5" to 4", removable 48V battery, rear drive system, and is completely battery operated, which reduces noise as well as the emissions that come with a gasoline unit.