Hello guys, I couldn’t find it about the search. Possibly there is a thread, then please merge. There are now the Kondesator start help boxes., The big advantage: You don’t have to have these preloaded in the trunk, garage or basement.https://www.westfalia.de/…/…-box-jump-starter-ultracap-msb300a.htm Instructions: Operation – Standard procedures In most cases, the vehicle battery still provides enough power to charge the start help box. Before: 1. Connect the start-up terminals (1) to the battery poles. Please pay attention to a correct polarity. The charging state indicator (7) shows the residual voltage of the vehicle battery. 2. Press ON/OFF (4), the start-up aid box is now charging on the battery. This usually takes about 100 seconds. My question: Who has experience with the capacitor start boxes? Gruss W.