I had to take the battery full of shock on the highway with a disco of control lights and a wild beep in the instrument cluster. Next descent down and read out the error memory. P1602 power supply Kl. 30 too small. All connections checked on the battery and under the hood. Nothing found. Error memory deleted, continued driving. After about 70 kilometers the same game from the front, but there I was only a few kilometers away from home. I checked the battery during the running engine 6.5V. I immediately thought of the generator. It would have to be normal there then 13.8V? Around there was not good to check there. I would have liked to measure B+ once. Quite strange is yes, if the engine is off, the voltage of the battery is rising again and one can only buy it after some time. So it’s safe to be on the generator! Sure is there. Unfortunately, there isn’t a good thing to do there. I would have liked to measure B+ once. So if the battery is off, then the voltage of the battery is rising again and it’s not possible to start again after 90. Well I decided that there is a new sound again. But I should use a lot of time.