Lowes offers CRAFTSMAN V20 20-volt max 10-in Straight Shaft Battery String Trimmer Edger Conversion Capable 2 Ah for $69 (reg. $99) free shipping. 

Product Description:
You can tackle several different tasks without switching tools when you put this V20* Cordless WEEDWACKER® Trimmer/Edger Kit to work. It features a motor you can trust to perform when duty calls and a reliably consistent, rechargeable 2.0Ah battery, with 25 minutes of runtime. With no stopping to bump required for trimmer line extension and an Automatic Feed System designed for convenience and efficiency, you can keep your focus on the job until it's done. Once the task is complete, conveniently store using the integrated VERSATRACK™ hook which is compatible with the VERSATRACK™ System (sold separately). The V20* battery platform is compatible with CRAFTSMAN® V20* Outdoor Equipment and Power Tools. You'll find the complete line of outdoor tools and equipment essentials for a job to make you proud.

• Reliable performance: V20* 2Ah lithium ion battery provides reliable power and performance
• Support and comfort: Wheeled edge guide for support and control while edging
• No bumping required: Automatic feed spool feeds trimmer line with no bumping required
• Auto-feed: 10-in cutting swath with 0.065-in line
• VERSATRACK™ compatible: Use the integrated hook to hang this tool directly on the VERSATRACK™ Wall Organization System (sold separately)