Passenger-Car Battery Swap Gets 'One Ruler': Standardised Ports, NIO 4,000+ Stations, CATL 3,000 by Year-End

One ruler for swap

Battery swap is moving from 'each does its own' to 'one ruler'. By May 2026 China had 6,000+ swap stations, ~1,000 added Jan–Apr, over 40% YoY. Behind the scale is a standard: on 20 Mar 2026 the first domestic passenger-car bolt-type swap interoperability spec—led by CATL, hosted by SAE-China—unified the mechanical connection, electrical interface and communication protocol between pack, vehicle and station, breaking the 'your station can't swap my car' wall.

Camps converge

Camps are converging. NIO leads with 4,000+ stations (1,035 highway) and 1.2 billion swaps; CATL's Choco-Swap hit 2,000 stations across 180 cities by Jun 2026, 3,000 by year-end, with 4,000 'swap-plus-supercharge' stations planned by end-2026 and 100k+ by 2028. GAC's '¥88,800 body + ¥399/month battery' separation plan saw swap versions near 80% of sales—standardised swap validated by buyers. The industry foresees a 2030 split of 'swap, home-charge, public-charge' thirds.

Yantai: not either-or

For Yantai owners, swap and charge are not either-or. Dongdian Huichong's public charging and community shelters watch the 'passenger-commercial compatible, swap-plus-supercharge' trend—doorstep stalls serve daily commuting while keeping an interface for future forms. Residents need not pick a tech route; a 'compliant, safe, available' stall is the steadiest choice.