This complete lawn maintenance power tool kit includes a rotary lawnmower and a grass trimmer for getting everything cut down to size. Both tools run on the same Greenworks 24v lithium ion batteries for cordless convenience which is hard to beat: the grass trimmer runs on a single 24v battery while the more powerful 48v lawnmower runs on two 24v batteries simultaneously. Whats more, this kit is part of a larger cordless system consisting of many more different types of power tools, all of which run on the same batteries and chargers - so it's easy to supplement your garden tool kit with additional tools such as hedge trimmers and leaf blowers if needed. Features and BenefitsPart of the Greenworks 24v battery systemIncludes 24v grass trimmer and 48v (twin 24v) rotary lawnmowerGrass trimmer runs on one battery while the lawmmower requires twoIncludes two 4ah batteries and chargerAdditional batteries and chargers also available separatelyConvenient and user friendly lith