Did not feel like the battery as several times before completely expand to tow from the collection-parking in my basement and load about 12-24 h and then install again. This works well, but is cumbersome.
I ere already toyed with the idea to buy a "USB Power Bank" for long-distance travel off the rungs, my Noco GB30 was just right. The electrical engineering knowledge of the 90 out of school but I was very, very skeptical that such a device could make a starter at almost 0 degrees by a 2.8L V6 engine.
Unpacking: Wow, very small and light. Super processed. But why is the packaging still so hammer-hard? Ahja, the two terminals and the cable for the car battery weigh well over the device. Must indeed flow through.
Conclusion: Since my battery totally had zero line, I had (that was me clear beforehand) switch to "manual mode". Turn the ignition key. Looking Forward. Once highway up and down. Everything is all right again. Car jumps again. Still 100% battery when GB30.
Then comes again the test as Power Bank, but with 24 Wh my phone (1900mAh at 5V) is mathematically can load a maximum of 2 times.
Super happy so far.
Oh yes:Amazon. The device is called Noco GB30 (Genius Boost). Not BG30.