RYOBI ONE+ 18V 13 in. Cordless Battery Electric String Trimmer/Edger with Extra 3-Pack of Spools, 2.0 Ah Battery and Charger P20150-AC - The Home Depot
Amazon.com : RYOBI P20130 18-Volt ONE+ Lithium-Ion Cordless String Trimmer with 1.3 Ah Battery and Charger Included : Patio, Lawn & Garden
RYOBI 40V Expand-It Cordless Attachment Capable Trimmer/Edger with 4.0 Ah Battery and Charger RY40250-EDG - The Home Depot