I bought the helicopter with the charging cable. At first I thought that the battery capacity might only "win" must, after about 10 charge cycles but I feel lost. Have the time measured: (!) Less than 2 minutes early, later only one I could fly the helicopter as I wanted it, then "floated" it just above the ground. The battery has simply not enough delivered energy so the helicopter could fly right. Quite depressing, because the helicopter was new. Has no real fun made for a minute to wait half an hour. Have the helicopter then sent back a week later. The flight characteristics during one minute, however, were very good! :) Too bad. Had me so let him replace, but that did not go through the form. I got it during a discount promotion, I would have to spend for the 2nd then much more money. Otherwise I would ACME yet given a try.