The battery swap system was a pilot program, and it was shut down in 2016 [1]. I don't think the parent comment was claiming that it was a new idea, though. [1

The battery swap system was a pilot program, and it was shut down in 2016 [1]. I don't think the parent comment was claiming that it was a new idea, though. [1] https://www.teslarati.com/tesla-shuts-down-battery-swap-program-for-superchargers/ https://www.teslarati.com/tesla-shuts-down-battery-swap-prog...