Moin, since our Crossi is a pure city/purchase car, it often happens after the winter, that I have the “feel” that it only starts willingly again. So the engine turns net as powerful as usual. Before I charge the battery, let’s take a look at the manual…there is:”Go to VW to charge”…. Regardless of that I don’t think that, as described in the manual, a classic acid battery is installed, but probably at least ne AGM, I know the batteries with a BMS Someone said, when charging plus to the battery, mass to the starting point of the body. I have a 10A CETEC charger. Someone else a useful hint?