Visited yesterday without charging.
In my last comment I mentioned how most traces of the old setup were erased from Chargemap and the web. But actually, on Google Maps we still find pictures of the old setup. There are 2 pictures from May 2022 of the 20kW CHAdeMO charger [1] [2]. A newer picture from June 2023 shows a Mennekes charger at what seems to be the same place as the old CHAdeMO charger. None of the picture are taken from very far so it's difficult to get a good idea of the setup.
Now that I have visited I have a much better idea of the situation.
There are 2 different area in front of the building. In front of the main entrance there's an area that can be accessed without any gate, there are no parking spots here except for 2 green spots with EV signs. That's where the CHAdeMO charger used to be and where the tall Mennekes charger now stands. We see this area in the Google Street View images from July 2013. We see the top of the EVTEC charger above the hedge and if we move further along the street and look back we can see a corner of the green parking spots, with a van parked on it.
The other area is the exterior parking lot along the building. This is where the mysterious Hypercharger from Chargemap is found. This area has manually operated gates that were open on my visit. I think this is part of the visitor parking. The Hypercharger has 2 CCS and an AC socket. There are 4 additional AC chargers in this parking. The parking spots are not painted differently in front of the chargers. There's one more concrete base similar to the one the Hypercharger is installed on, presumably for a future expension.
The chargers don't have any instructions for who can use them or at what times, but there's an identical poster on each one about the migration from chargecloud to autoSense payment backend, asking employees to download the autoSense app to continue using the chargers. The poster says the stations will be migrated until April 30, 2024. This migration seems to be complete, as every charger has the autoSense QR code and appears in the autoSense app.
The older chargecloud IDs through Cablex prefix are still visible in roaming apps like Swisscharge, but I doubt this will work anymore. The third picture from Google Maps with the Mennekes charger showed the old Cablex QR code.
For both the older chargecloud and new autoSense IDs, there are actually more IDs than I saw, so I suspect there are also a number of chargers in another parking lot, possibly indoor.
The power of the chargers is uncertain. It's not written on them, and the old chargecloud IDs listed different powers than autoSense now does. All AC were previously listed at 11kW and the DC (Hypercharger) at 50kW, but now AC are all 22kW and DC is 75kW. The Hypercharger had to be a 150kW since it has 2 connectors, but maybe they limited it?