"Battery swapping, a relatively new technology pioneered in China" I assume they mean for EVs, since I have been swapping them in my portable devices for decad

"Battery swapping, a relatively new technology pioneered in China" I assume they mean for EVs, since I have been swapping them in my portable devices for decades. Also, I bemoan the use of the word "technology" just to make something sound more impressive. What technology is involved in swapping batteries?