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 : BLACK+DECKER 40V MAX* 13 in. 2in1 Cordless String Trimmer/Edger with POWERCOMMAND Kit (LST136) : Patio, Lawn & Garden