Hello together, have the following problem: my ctek xs 7000 does not charge my battery. It stops at the first stage of the charging cycles and does not pass to the second stage. The charger was at noon today 3h at the battery when I saw that it “hangs”. The charger had become quite warm. I suspended it and connected it to another car battery after a cooling phase. There it works perfectly. Experience shows that the first stage of the charging process will change Depending on the condition of the battery, phase 2 will also be closed a few minutes later and phase 3 will start when the battery is fully charged. To the data: Vehicle: Mercedes SL 350 R230 Battery: Varta AGM Ultra Dynamic 70 Ah (exactly 3 years old) Battery condition: 11.53 Volt before my charging attempt, 11.66 Volt 3h later Charger: Ctek XS 7000 (exactly 3 years old) I was still on the road with the vehicle on Thursday. There were no problems. D Open and close (which pulls the most current) worked perfectly. Have run the radio at an intermediate stop. After a good half hour the message came: “Start motor or Comamnd shuts down in 3 minutes”. It then turned off 3 minutes later. When the engine started then no message of “comfort function turned off”. Just before I arrived at home, a message came in the display: “right flasher bulb defective. Replacement bulb ak Tiv” (or similar). I put the car in the garage and wanted to check for the flasher bulb today. After I switched on the flasher (bulb is not defective) a few seconds later came the message in the display “roll up the rollbar” and dananch “comfort function switched off”. Battery voltage was there at 11,53 volts. Yes and then the Ctek hung on it for 3 hours. What should I keep from it? Why does the Ctek not charge the battery? Should the battery, where I always use the battery? should I try the Recond function of the Ctek? Should the battery be suspended, because then 15.7 volts are created? Should the battery be suspended?