The Milwaukee Tool M18 FUEL 17 in. Dual Battery String Trimmer meets the performance, durability, and ergonomic needs of landscape maintenance professionals. This string trimmer provides the Highest Power, delivering the most peak torque compared to leading professional gas and battery string trimmers. This string trimmer provides users with the Fastest Clearing, cutting through the most demanding applications while maintaining the highest string speed. The POWERSTATE Brushless Motor and advanced electronic package allow the string trimmer to reach Full Throttle in Under 1 Second, boosting control and productivity. The REDLINK PLUS Intelligence enables full-circle communication between the tool and battery, providing you with unmatched levels of performance, protection, and productivity. The advanced electronic package also delivers high and low speeds, and a variable speed trigger giving you ultimate control over the power range. The string trimmer requires (2) M18 REDLITHIUM Batteries for operation and is optimized to be used with M18 REDLITHIUM HIGH OUTPUT batteries. The M18 REDLITHIUM HIGH OUTPUT XC8.0 Battery gives you best-in-class performance and run-time in all applications. The Easy Load Trimmer Head provides an easy line loading experience and the ability to load up to 25 ft. of trimmer line in under 30 seconds. The M18 FUEL 17 in. Dual Battery String Trimmer is fully compatible with 250+ solutions on the M18 system.