I have this device gekauf because it should be very easy, and I, even though I'm sitting in a wheelchair, can still be a little engaged in housework. The unit came, was assembled and charged the battery properly. Anyway, it was attempted to load it. Unfortunately it was very hot. After the charging time, I put the battery and nothing. My son has checked again and everything says the battery is faulty. Now something is annoying, but it can happen. Really angry makes me but that I now have to return at my expense this, me yes defective equipment supplied. Let's see if I get the purchase price back at least and how high are the costs of return. I'm writing this on Jenden case again. As a rip off I feel it already, and will in this Anbierer nothing guaranteed buy.