Visited on October 24 and charged with MOVE RFID.
I tried to visit this location the last time I was in St-Gallen but because of roadwork I was not able to find the way in. Now all roadwork seems to be finished.
There are actually 2 different ways to reach the gas station and charger, depending which direction you come from. If you arrive from the west, you can turn right at the light directly onto Kunklerstrasse and then the entrance is immediately to the right.
From most other directions it seems like you will end up on Herisauer Strasse, follow the mandatory right turn onto Kunklerstrasse and then arrive at the TCS center from the other side.
The charger is among the customer spots for the gas station. Only one space is designated as a charging space.