Lichmaschine broken?

Hello together. In the morning or better written when (shortly after) the first start of the scooter, when it is cold (from zero degrees) the lach machine brings about 12,1 volts as charging current up to the lach machine. On is then natural, light, carburettor heating, E-Choke, clock, etc. so many consumers. When I turn on the brake and the indicator the measurement result goes to 11,9 volts. When I drove for a while, then the measurement comes to 13,2 to almost 14 volts. another screwdriver didn’t fit my scooter? Or do you think that’s okay? Unfortunately, I spent 1.5 hours in a full lock last morning (not even went through). Since the scooter didn’t turn off the lighting even when the engine was off, and that often started, the battery in the morning brought down so far that I had to start the kick the next day. Yes, but I also noticed the fact that he did not have to do that. het enough to charge the battery brings…okay longer tracked and full again… it’s normal… but as I said, when it’s something like that…