The Greenworks 60V 16″ Top Mount String Trimmer with 4.0 Ah Battery & 3 Amp Charger is a powerful and intelligent trimmer that offers exceptional performance. It is part of a comprehensive range of residential outdoor power equipment. With a top speed of 6 .000 RPM . it delivers more power than other gas trimmers. The advanced load sense technology ensures that the trimmer never bogs down and senses when more power is required for a perfect cut every time. It features a compact top mount brushless motor . allowing for the use of different universal attachments for various lawn applications. The trimmer can run for up to 50 minutes on a single 4.0 Ah battery and offers continuous runtime with interchangeable batteries. The included 3 Amp charger can recharge the 4.0 Ah battery in 80 minutes or less. The Greenworks brushless motor makes the trimmer quieter than gas trimmers . reducing noise pollution. It is also lightweight . weighing only 9.15 lbs. . and has low vibration . reducing fatigue during prolonged trimming sessions. With a Load-N-Go trimmer head that holds up to 18′ of 0.095″ spool . loading line becomes quick and easy. By choosing the Greenworks 60V trimmer over gas trimmers . you can save over $400 in a five-year span. There is no need to buy gasoline . oil . filters . spark plugs . or fuel lines . eliminating the need for engine maintenance and downtime. Additionally . it is environmentally friendly . with no fumes or emissions. Overall . the Greenworks 60V 16″ String Trimmer offers outstanding performance and efficiency . allowing you to work smarter and save time . money . and energy. Includes 4.0 Ah lithium-ion battery . 3 Amp charger. Battery is compatible with 75+ Greenworks Pro 60V products.