Wasted good money on this product. The first battery stayed charged for 15 minutes and went bad after just two weeks. They did send me a new battery which again held a charge for 15 minutes. Now they are playing games with me. They claimed they would send me a new charger because now they are saying that the charger must be a problem but they never did and when I call back to question them they disconnect me. They advertise that you can trim around three or four football fields on one charge...baloney...15 minutes...can you run around four football fields in fifteen minutes...can you trim while running...These people need to be shut down and made to return the money they stole...I for one am tired of scams and ripoffs.