Ryobi 18V ONE+ Lawn Mower review - a great mower for small yards with not-so-great batteries - The Gadgeteer
18V ONE+ HP BRUSHLESS WHISPER SERIES 20" LAWN... - RYOBI Tools
Amazon.com : RYOBI 20 in. 40-Volt 6.0 Ah Lithium-Ion Battery Brushless Cordless Walk Behind Self-Propelled Lawn Mower with Charger Included : Patio, Lawn & Garden
RYOBI P1140S-2X 13 in. ONE+ 18-Volt Lithium-Ion Battery Walk Behind Push Lawn Mower & String Trimmer - 4.0 Ah Battery/Charger Included - Walmart.com
RYOBI ONE+ HP 18V Brushless 16 in. Cordless Battery Walk Behind Push Lawn Mower | eBay
Amazon.com : RYOBI ONE 40V HP Brushless 20 in. Cordless Battery Walk Behind Push Mower with 6.0 Ah Battery and Charger, Gray, RY401170VNM : Patio, Lawn & Garden