BLACK+DECKER EASYFEED 20-volt Max 12-in Straight Battery String Trimmer with Edger Conversion Capable 2 Ah (Battery and Charger Included) in the String Trimmers department at Lowes.com
Black+Decker LST400 102280034 | Home Hardware Center
Amazon.com : BLACK+DECKER 40V MAX String Trimmer and Edger Kit, Cordless, 13 inch, 2-in-1, Battery and Charger Included (LST140C) : Patio, Lawn & Garden