This station is on eCarUp since June 2025, but has existed for longer.
On Chargemap there are pictures from December 2020 and May 2021 showing 2 EV spaces and 2 Zaptec chargers. This setup is also visible on the Google Street View images from June 2023.
On the Google Street View images from November 2014 we see 2 EV spaces and an electrical box that looks like the others around Rapperswil at the time.
On the Google Street View images from August 2013, it doesn't look like there are any EV parking spaces or electrical box. However on those pictures I see that the parking spaces alongside the water have blue plugs are regular interval. Probably to plug in boats or campers, but I guess that would have been used to charge electric cars at the time as well.
I can't find anything showing why there's only 1 out of 2 chargers on eCarUp. I guess I'll have to visit.