With POWERDRIVE transmission and 33% more runtime, this battery-powered trimmer/edger can tackle tough overgrowth and heavy weeds..Twice the tool in one easy package. The BLACK+DECKER 20v MAX* Powerconnect 12-Inch String Trimmer/Edger makes cutting back overgrowth, grass, and weeds simple. Easily switch the edger lawn tool between trimmer to wheeled edger and take control of your lawn, backyard, or sidewalk thanks to adjustable height and handles with premium micro texture grips. PowerDrive Transmission puts more power in your hands with increased torque and cutting power at the string. Because it’s part of the 20v MAX* Powerconnect System, you can easily swap the battery between all of your BLACK+DECKER 20v MAX* Powerconnect tools. *Maximum initial battery voltage (measured without a workload) is 20 volts. Nominal voltage is 18.