Nio and Aulton are the major players in the space, but for different groups. A month ago, Nio reached the 10 million battery swap service milestone.

Notably, Aulton's battery swap stations are primarily for cabs and ride-hailing vehicles, while Nio's stations are only for its owners.

On July 5, Nio announced that it had reached the 10 millionth battery swap milestone, as the service has become the preferred method of replenishment for its owners over the past four years.

Nio's initial 200 battery swap stations were first-generation facilities, and the company placed its first second-generation battery swap station in service on April 15, 2021, making it Nio's 201st battery swap station.

Nio's second-generation battery swap stations can store up to 13 batteries and have a maximum daily service capacity of 312 times. In comparison, the first-generation battery swap stations store up to 5 batteries and have a maximum daily service capacity of 120 times.

NIO's plant in Hungary for swap stations to start operation in September