I live in an average suburbian house. Small lawn in front, small lawn in back. House is about 1500 Sq ft. I can string trim and blow off my front and backyard both with only one 4ah battery. Last weekend I blew out my gutters, trimmed the front and back, blew the super mess from the gutters front and back- all on 2 batteries (both mostly drained, but they didn't yet shut down yet) I love these tools! I want the hedge trimmer and chainsaw!