Bestbuy offers Greenworks - 80V 17" Brushless String Trimmer with 2.0Ah Battery & Charger - Black/Green for $170.99 (orig. $249.99) with free shipping.

Product Description:
Experience the next generation of power! The Greenworks Pro 80V 17 Inch Cordless String Trimmer features advanced brushless motor technology, delivering major torque, power and life - with virtually no maintenance required. The incredible power & performance is equivalent to a 30cc gas string trimmer, without the added weight, pesky pull start and noxious fumes of gas and oil. When it comes to outdoor power equipment, you put the emphasis on “power.” And why not? For homeowners like you who take on jobs big or small, you need heavy grade construction and long-lasting peak performance. The Greenworks Pro 80V family of tools meet the challenge with a universal battery system that works across multiple products, high-efficiency motors, and innovative smart technology.

• High Efficiency Brushless Motor
  Provides more power, torque, quiet operation & longer motor life
• Engine Displacement
  Equivalent power to a 30cc gas string trimmer
• Coverage
  Perfect for trimming 1/2 to 3/4 acre
• Load N' Go trimmer head
  To effortlessly rewind the spool in seconds
• Variable Speed Trigger
  For more control over your power
• Dual Feed .095" Spiral Twist Line
  Tackles even the toughest & thickest weeds
• Weight
  Just 11 lbs with battery - 37% lighter than a gas string trimmer
• Includes
  80V 2.0 Ah Lithium-Ion Battery & Charger