This hotel has charging stations in its underground parking garage.
The website has an "Arrival and parking" page but it doesn't mention the charging station or the cost of parking, in either the German or English version. Instead, at the bottom of the homepage https://hotel-interlaken.dorint.com/de/ (but in the German translation only) there's an FAQ which has the answers to those questions:
Sind E-Ladesäulen vorhanden und wenn ja, wie viel kostet das Laden?
Ja, für CHF 0,45 pro KwH können Sie Ihr E-Auto bei uns laden.
Kann man direkt am Hotel parken und wenn ja, wie viel kostet ein Parkplatz?
Ja, Parkplätze vor dem Hotel sind kostenfrei.
Die Tiefgarage ist nur von Mitte Dezember bis Ende Februar kostenpflichtig (CHF 10.00 pro Tag), restliche Jahr kostenfrei.
The website doesn't say where the chargers are or how many there are. But on Chargemap there are some pictures that confirm the chargers are in the underground parking and there seems to be 4 plugs, with attached Type2 connectors. One of the QR code is readable from the picture and it shows eCarUp is the payment backend and it's indeed 45ct/kWh at the moment. The chargers cannot be seen in the eCarUp app though.
I didn't stay at the hotel but walking around I confirmed there is no charger outside.
The marker on Chargemap is placed incorrectly. I suspect that's because Chargemap automatically sets the coordinates when you type an address, and Beatenberg re-numbered their streets at some point and the automatic marker placement was probably confused.