Trim up to 2 miles of grass on a single charge with the 60V 16" Brushless Cordless Battery String Trimmer with 2.5Ah Lithium-Ion Battery & Rapid Charger, ST60L254, and is 25% lighter and has 25% more power than a gas trimmer. Choose the best cutting power for the job with the option of high or low-speed settings and a responsive variable-speed trigger for on-demand power. Load-sensing technology automatically provides more power when needed, and never bogs down. The Load N' Go trimmer head makes cutting line reloads a breeze, and the bump-feed feature means quick, easy line advancements on the fly; just tap it on the ground, and the line automatically advances. It delivers up to 65 minutes of trimming on a single charge, and battery fully recharges in just 50 minutes. Enjoy constant, fade-free power with the battery-powered Intelligent TRUBRUSHLESS motor technology provides power equivalent to 26cc gas-powered trimmers, without dangerous emissions, smells, hassles, or maintenance. With hassle-free, push-button starts, you'll get to work fast, with no priming, no choke, and no pull cord. Includes: one (1) 2.5Ah lithium-ion battery and one (1) rapid charger. Battery is compatible with 75+ Greenworks 60V products. Life. Powered by Greenworks.