I crashed my walkera 250r and dented the side of the battery, no big deal, charged it and it swelled,big deal, took it to local battery recycle drop. This was a nearly new walkera battery.
I would love to have a racer that holds height like my phamton 3 and the speed of my walkera 250 R. Then all ide have to do is bank and turn. Which seems to be my nemesis