CRAFTSMAN V20 20-volt Max 13-in Straight Battery String Trimmer with Edger Conversion Capable 2 Ah (Battery and Charger Included) in the String Trimmers department at Lowes.com
Amazon.com : Leisch Life Cordless String Trimmer,10-Inch 20V Weed Wacker with 2.0Ah Battery & Fast Charger,Grass Trimmer Tools for The Garden and Yard : Patio, Lawn & Garden
Amazon.com : Weed Eater Battery Powered Weed Wacker with Blades, 3 in 1 Cordless Grass Trimmer Foldable and Lightweight, with 3 Types Blades and 2Pcs Li-Ion Batteries 21V 2Ah Red : Patio,