Hello, I had the following problem this morning with my V70 for the second time: The car is apparently completely powerless, as if there was no battery in it. ZV is not working, interior and instrument lighting is not working, of course it doesn’t start either. I have such a small power bank with starting aid function, after I have jammed it, everything is there, even the starting works at usual speed within half a second. Battery is a year old, the last incident of this Art is six weeks ago. I know this with old batteries, but then everything is a “bish” on and the starter turns slowly and doesn’t make it, but so in the way this is all completely dark, I’ve never seen. Does anyone have an idea what that can be? Is there some kind of main switch that shuts down at undervoltage? I’m grateful for every hint, thank you very much,Kai.