Visited on Sunday, February 9 without charging.
The charger is out of service. I don't know if it ever worked, or if it's brand new and awaiting service.
I discovered its existence through the ChargeON app, as it seems to be networked through AMAG. I have not seen any reference to it on other community websites.
There is no charging station here in the Google Street View images from August 2021. The Google or Swisstopo satellite images are not good enough to spot if the charger is there, and they are not dated anyway. The charging station has a manufacturing date of December 2022. But the green paint on the ground is already faded, so it must have been installed for a while.
The charger is in the outside parking. There's no gate. The sign at the entrance says the parking is only for customers of the shopping center. There's a parking meter, indicating 0-24h with 45min free, so it's probably fine to use the charger at any time as long as you pay for parking.