Visited on February 16 without charging.
The charger is in the Alterszentrum parking, accessible 24/7 without gates.
Parking is free, and based on the signage it seems like the chargers might be open to everyone.
One of the "max 4h" sign is not placed at the correct location. It's at the wrong end of the row where the charger is located.
For some reason they painted 4 EV signs on the floor, but there are only 2 stations at the moment.
On my first passage I missed the turn towards the Alterszentrum. It seems to be a brand new road. There's a sign, but it was sooner than I expected.