How have we done for so many years: the meters of wire that must constantly be careful not to cut! Risks when this happens ... The weight is well distributed: 3k400 is light for a man is good, except in the long term for a woman no longer young ... Actually the battery takes longer than I could do it, so it's perfect because mowing is fast and flawless. Ultra-fast charging time, just enough time to pick up the mowing executed. After the blade -the first teeth of the unit-effective super large branches cut, nothing can resist him. Really, I have several devices of this brand, which my dear robot mower, and I am a fan! Fast shipping. Perfect !!!