For environmentally responsible trimming jobs, the STIHL FSA 65 grass trimmer utilizes STIHL Lithium-Ion technology to eliminate fuel costs and engine emissions. No gasoline, no power cords, and eight times quieter than the STIHL gasoline-powered equivalent. The STIHL Lithium-Ion battery does not have a gradual drop in power during use, running at full speed until the battery is depleted. And the STIHL FSA 65 grass trimmer is lightweight, well balanced and starts with just the pull of the trigger. High cutting speeds allow the user to complete more trimming in a shorter amount of time. Run time may vary based on battery type, charge level and capacity, model, operating style and conditions. Batteries & chargers can be purchased separately or as a combined set with tool.