Awesome device. For me a garden of 1000m2. I have not calculated the exact autonomy but the battery holds enough for 2 applications. Really light it is also very well balanced. Previously I was using industry cutting edge "no name" a true galley, a wire that broke easily, a car power that rarely worked and especially not a top mobility. With this cable the need to carry around behind I rarely returned back to refine. There, with this one you wander in the garden with, feel free to leave some places. The wire feed works very well, the pivoting head is very convenient for terrace borders between-other. Conclusion: very good tool and it's like the phone I could not go back to the wired.