CATL and BAIC Partner to Build One-Million-Vehicle EV Battery Swap Network

For Western automakers and infrastructure planners, electric vehicle battery swapping is often viewed as a capital-intensive dead end, rendered obsolete by the rising speeds of conventional fast chargers. For China’s battery giants, it remains the primary architecture to decouple vehicle costs from battery degradation and shield local power grids from massive demand spikes.

That architectural divide widened on October 22, 2026, when Contemporary Amperex Technology Co. Limited (CATL) and Beijing Automotive Group (BAIC) signed a strategic agreement in Beijing. The partnership commits the two companies to building a battery-swap network capable of supporting one million electric vehicles across China.[1][2][5]

Under the deal, BAIC will integrate multiple models across its brands into CATL’s standardized "Choco-SEB" swap ecosystem. In return, the automaker will open its national dealership footprint to host CATL’s robotic swap stations, bypassing the land-acquisition hurdles that typically slow infrastructure rollouts.[1][2][5]

CATL has already deployed 2,520 of these stations across 200 Chinese cities as of late September. The automated facilities physically remove a depleted battery pack from beneath a vehicle and bolt in a fully charged replacement, allowing drivers to replenish their range in minutes without leaving the vehicle.[1][2]

During peak holiday travel periods in 2026, the busiest of these stations handled over 300 swaps in a single day. The rapid deployment is designed to solve what industry analysts call the "chicken-and-egg problem" of electric vehicle adoption: consumers hesitate to buy cars without adequate infrastructure, but operators cannot afford to build infrastructure without a guaranteed vehicle base.[1]

The Capital Burden

The swapping model requires immense upfront investment. Unlike a standard charging plaza, a swap station operator must finance not just the real estate, grid connections, and robotics, but a standing inventory of idle battery packs waiting to be used.

This inventory burden means swapping only yields a positive return on investment when utilization rates are exceptionally high. The stations must perform continuous swaps throughout the day to justify the capital locked in the resting batteries, a metric historically difficult to achieve with private passenger cars.

CATL attempts to offset this hurdle by selling the vehicle without the battery, significantly lowering the upfront purchase price for consumers. Drivers then subscribe to a battery-as-a-service plan, which CATL currently prices between $51 and $82 per month depending on the chosen capacity and mileage limits.[3]

The "Chocolate" marketing moniker refers to the modular nature of the battery blocks, which are offered in standardized #20 and #25 formats. Rather than carrying a massive battery at all times, a driver commuting in the city can rent a single block for daily use.[3]

For a long-distance highway trip, that same driver can temporarily rent additional blocks to extend the vehicle's range. This need-based swapping solution means owners only pay for the capacity they actually require, reducing the dead weight the vehicle carries during routine daily driving.

Expanding the Ecosystem

BAIC’s Arcfox brand has already launched the Beta S3 sedan compatible with this modular system, and a swappable version of its Beta T1 recently appeared in regulatory filings. By pooling BAIC’s vehicle volume with CATL’s infrastructure, the partners hope to achieve the utilization rates required to make the math work.[1][2]

The BAIC agreement follows closely on another major partnership for CATL. Huawei’s intelligent automotive technology company, Yinwang, announced on October 19 that it had also joined the Choco swap ecosystem.[2]

The collaboration signals a push to integrate swapping software directly into vehicle navigation and autonomous driving systems. This integration allows the car to independently route itself to a station when energy levels drop, moving swapping from a manual chore to a seamless software feature.[2]

Beyond vehicle refueling, CATL views the swap stations as distributed energy storage units. A network of 30,000 stations—the company's stated long-term goal—would house massive amounts of grid-connected storage, allowing the facilities to charge batteries during off-peak hours and support the grid during peak demand.[2]

The Scale Challenge

CATL, which supplies the actual battery cells to most of the industry, is leveraging its sheer manufacturing scale to establish a universal standard. The company plans to build 1,000 dedicated highway swap stations by the end of 2027, extending the service beyond dense urban centers.[2]

The companies claim this deployment will create a "10-minute battery-swap circle" for drivers, a marketing phrase meant to assure buyers they will never be far from a fresh battery. However, achieving that density nationwide requires a level of capital expenditure that even CATL will find challenging to sustain without massive vehicle adoption.[5]

Investors reacted positively to the volume commitment, sending CATL’s Hong Kong-listed shares up nearly 3 percent to HK$348.8 following the announcement. The market views the recurring revenue from battery subscriptions as a necessary hedge against falling battery cell prices.[5]

Yet the ultimate success of the million-vehicle target depends on consumer uptake of a subscription model that remains largely untested outside of commercial fleets. If private buyers continue to prefer the simplicity of plugging in at home, CATL and BAIC will be left managing a highly advanced, highly expensive network of idle assets.