Worx 20V Battery + Charger Included 20-Volt GT 2.0 String Trimmer/Edger/Mini-Mower with Tilting Head and Single Line Feed &ndash; WG160 3-in-1 function with dual-position wheels for grass trimming, edging and mowing Converts from a trimmer to an in-line edger in seconds with no tools One (1) 20V* cordless MAX lithium battery 12-inch cutting diameter with automatic 100% single line feed (no bump) Quick-release lever for fast telescopic height adjustments to the 90-degree tilting shaft Dual-function flower spacer guard helps protect vegetation and acts as an edger guide Ultra-lightweight, ergonomic design  only 5.7 pounds Share batteries across all your 20V Power Share WORX tools so you never run out of power No-Load Speed - 7600/minute. Cutting Line Length - 10inch. It takes 3 hours to fully charge the battery with the included charger.Each 20V Max Lithium Battery will provide enough working time per charge to trim around the average 1/4 acre yard. Actual results may vary depending on the density of the grass or weeds youre cutting or the age of the battery pack