RYOBI 18V mower with four 4Ah batteries $429, more | Electrek
Ryobi RY401100-Y 40V 18'' 2-in-1 Cordless Battery Walk Behind Push Lawn Mower for sale online | eBay
RYOBI 40V HP Brushless 20 in. Cordless Battery Walk Behind Push Mower with 6.0 Ah Battery and Charger RY401170 - The Home Depot | Push mower, Ryobi, Self propelled mower