There is a Nio battery swap station next to my nearest Tesla station (Lier South, Norway). No idea how well it works, but it certainly does work. According to

There is a Nio battery swap station next to my nearest Tesla station (Lier South, Norway). No idea how well it works, but it certainly does work. According to Nio they had four million battery swaps in China by the end of 2021. Of course they don't say how many problems occurred.