Ebay offers EGO Power+ 15 Inch String Trimmer With Powerload Kit, Refurbished for $145.49 (reg. $179) with free shipping. 

Product Description:
This item is sold as a kit which includes the battery. This is 15 in. String Trimmer with POWERLOAD technology automatically winds your trimmer line. Replacing your string line is as easy as feeding the line into the head and pressing a button! With the telescopic aluminum shaft, you can easily adjust the shaft length for ease of use and comfort. This trimmer is built with a high-efficiency brushless motor, bump feed line advance, 0.095'' professional cutting line, and is compatible with all EGO ARC Lithium batteries to maximize the convenience of cordless and deliver Power Beyond Belief. Factory Certified. POWERLOAD technology; load your line, push a button and go Get up to 45 minutes of run time on a single charge with the included 56V 2.5Ah ARC Lithium Battery Telescopic Aluminum Shaft quickly fits your height for ultimate comfort