I wanted this Kadegeröt actually use to bring to life again to my Mopped discharged battery. When I had fumbled the device from its blister pack out, I immediately wanted to get going. As soon as you connect it to the 230V supply, the unit spent an indefinable error message, in which shone all lights. Connected to the battery, it would not be better. The whole then tried at various outlets, but unfortunately nothing changed. Thus, the device is not nearly useful. Whether I have now received a Monday device, I do not know. But in the description, unfortunately, is nothing to be found on the blink concert, so I could understand maybe what is broken or wrong. I sent the Geröt back, and want my money back. I hope that works out. Because unfortunately you have to cut the blister pack, to get to the unit. I tell myself now that I would rather spend 20 more and get me the Procharger Louis.