I have the equipment now just over the warranty period. as if that would have guessed. Chamber in no loading a battery more than 70%. definitely is not fine. shame I have often used and it was more than 25 months reliably. However, I had plenty of money paid for something and expect longer duration. I am beginning to think it's not ok still experience this in all possible areas, the products the guarantee period and then must be replaced. yes but I will not buy again from this manufacturer ...