Will, or must my battery be attached to a charger, said done, connected as you do, 25% would be displayed and half an hour later it was already 50%. Garage too, 2.5 hours later the charger was still at 50% and the charger was well warm… What now? Did I do something wrong? Does the battery have to be disconnected after all? I connected a Bosch C30 which so far was no problem with my Citigo with normal battery. Only what happens now with the K amiq with EFB?