The BLACK+DECKER LST201 20V MAX* Lithium 10-Inch String Trimmer/Edger is a Part of the 20V MAX* System.nbsp; This unit is designed for areas of overgrowth after mowing, and also for edging of grass around borders, walkways and posts. It easily converts from trimmer to wheeled edger. The Automatic Feed Spool (AFS) automatically feeds trimmer line when needed with no bumping required. It features a lightweight design of only 4.5 lbs., with an adjustable height and handle for ideal user comfort. A 20V MAX* Lithium Ion 1.5Ah battery holds its charge for up to 18 months. Cut Swath – 10 in, Line Size – 0.065 in, RPM – 9,000, Replacement Spool SKU# AF-100.nbsp; Maximum initial battery voltage (measured without a workload) is 20 votes. Nominal voltage is 18. Includes: (1) LST201 20V MAX* Cordless Trimmer/Edger, (1) LBXR20 20V MAX* Lithium Ion Battery, (1) Charger, (1) AFS Spool, (1) Guard Automatic Feed Spool (AFS) feeds trimmer line as needed without bumping. | Easily converts from trimmer to edger. | Lightweight design of just 4.5 lbs. | Part of the 20V MAX* System – 1 System. Endless Tasks. Power for your Style. | 20V MAX* Lithium Ion 1.5Ah battery holds a charge for up to 18 months. | *Maximum initial battery voltage (measured without a workload) is 20 volts. Nominal voltage is 18. Cordless 20 V