Quick Answer: NIO battery swapping lets a compatible EV exchange its depleted pack for a charged one in about three minutes. As of August 7, 2026, NIO had passed 120 million cumulative swaps and opened its 4,000th Power Swap Station. NIO also said its first fifth-generation stations were live and the firefly brand had formally joined the swap network. BaaS remains the separate commercial model that removes the battery from the vehicle purchase price where offered.
Last verified: August 8, 2026. Every network figure below carries its own reporting date. Current milestone evidence comes from two verified posts by NIO founder, chairman and CEO William Li; NIO had not posted a matching English newsroom release when this page was checked.
Page role: This is BYDToday’s preferred evergreen cluster for NIO Power Swap and Battery-as-a-Service. The wider company and founder story belongs to NIO and William Li; model-specific pricing belongs to pages such as the NIO ES9 guide.
What changed on August 7, 2026?
- 120 million swaps: William Li said NIO crossed the cumulative milestone at 08:09:16 China Standard Time.
- 4,000 stations: NIO opened its 4,000th Power Swap Station in Quanzhou, Fujian.
- Fifth generation live: the first fifth-generation Power Swap Stations entered service.
- firefly access: NIO said firefly had formally joined the NIO battery swap network.
How does a NIO battery swap work?
A compatible NIO, ONVO or supported firefly vehicle enters a Power Swap Station and is positioned by the station’s automated system. The depleted pack is removed from underneath the car, a charged compatible pack is installed, and the system checks the battery and electric-drive hardware. NIO says the exchange itself averages about three minutes; the complete visit, including positioning and checks, can take longer.
This is different from ordinary charging. A charger transfers energy into the battery already in the car. A swap station exchanges the physical pack, so it must store charged inventory, identify pack condition and maintain mechanical and software compatibility with the vehicle.
How large is the NIO battery swap network?
NIO’s latest dated milestone is 120 million cumulative swaps and 4,000 Power Swap Stations as of August 7, 2026. Earlier operating figures remain useful only with their February 6 reporting date; the August announcement did not restate the highway-station count, energy delivered or average swap time.
| Metric | Reported figure | As-of date | Evidence status |
|---|---|---|---|
| Cumulative swaps | 120 million | Aug. 7, 2026 | Completed; William Li |
| Power Swap Stations | 4,000 | Aug. 7, 2026 | Deployed network milestone; William Li |
| Fifth-generation stations | First stations live | Aug. 7, 2026 | Operational rollout started; William Li |
| firefly integration | Formally joined the network | Aug. 7, 2026 | Announced; vehicle and site access can vary |
| China highway stations | 1,020 | Feb. 6, 2026 | Deployed; NIO newsroom |
| Average swap time | About 3 minutes | Feb. 6, 2026 | Company-reported average |
| Energy delivered by swaps | 5.28 billion kWh | Feb. 6, 2026 | Company-reported cumulative total |
| Additional 2026 stations | 1,000 planned | Plan announced Feb. 6 | Target, not a completed count |
NIO reported 100 million swaps and 3,790 stations worldwide on February 6, 2026. The August milestone shows continued expansion, but the current announcement does not provide a country-by-country station split or new utilization data. Station count alone therefore cannot show traffic, profitability or coverage quality.
What does the fifth-generation NIO swap station change?
The confirmed August change is operational: NIO’s fifth-generation stations have moved from a planned 2026 rollout to initial live deployment. NIO also tied the launch to firefly’s formal entry into the network, extending the infrastructure story beyond the NIO and ONVO marques.
The two current announcements do not provide an English technical specification sheet for fifth-generation throughput, pack capacity or station economics. BYDToday therefore does not treat unverified specification claims as confirmed. Drivers should use the NIO or firefly app to check whether a specific vehicle and station are available for swapping.
What is NIO BaaS?
Battery-as-a-Service is NIO’s vehicle-battery separation model. In markets and configurations where BaaS is available, the customer pays a lower vehicle purchase price because the battery is not included in that price, then pays a recurring battery subscription under the applicable contract.
BaaS is not a generic discount. The monthly fee, pack options, swap allowance, upgrade rights, insurance treatment and termination terms can vary by model, date and market. A BaaS vehicle price should never be compared with another vehicle’s outright price without adding the subscription assumptions and intended ownership period.
What does a driver gain, and what must be checked?
| Question | Potential benefit | What to verify |
|---|---|---|
| Replenishment | A swap can be much faster than a conventional charging stop. | Station coverage, queues, opening status and vehicle compatibility on your routes. |
| Upfront price | BaaS can reduce the vehicle purchase amount. | Subscription cost, minimum term, cancellation rules and total cost over your ownership period. |
| Battery condition | Stations monitor and rotate packs rather than leaving one pack with the car for life. | Contract language on usable capacity, pack grades, damage and service responsibility. |
| Upgrade flexibility | Some plans and markets may allow temporary or permanent pack changes. | Which upgrades are actually offered for the specific model and account. |
| Resale | Separating vehicle and battery can reduce one source of battery-age anxiety. | How the BaaS contract transfers, local used-car demand and any settlement obligations. |
Why does NIO treat every swap as a data and safety event?
Pack exchange gives the operator repeated access to the battery. NIO says every swap includes a health check, so abnormal packs can be identified and moved out of customer circulation. That does not make battery risk disappear, but it creates a centralized inspection and inventory process that fixed-pack vehicles do not have.
The 2019 ES8 recall shows why this matters. NIO recalled 4,803 vehicles using NEV-P50 modules and also replaced affected modules inside the swap network. Its annual report accrued RMB 339.1 million of recall costs. The ability to control packs across vehicles and stations supported the remediation, but the episode also demonstrates that the operator carries substantial safety and replacement obligations.
What is the business-model case for swapping?
NIO’s strategic argument is that a dense energy network can make a battery EV easier to use than a gasoline car while creating recurring customer relationships. Stations can also charge packs when electricity demand is lower, monitor battery condition and, where grid programs allow, participate in load management. NIO reported more than 740 million kWh of load shifting through network interaction by February 2026.
The economic case depends on utilization. A site needs land, grid access, station hardware, spare packs, maintenance and operating systems. Low-traffic stations improve geographic coverage but may take longer to recover their costs. High-traffic sites can improve asset use but create queues and require more battery inventory. Station count alone cannot prove profitability.
Can other brands use NIO’s swap network?
NIO’s internal multi-brand network now includes NIO, ONVO and firefly, but access still depends on vehicle generation, battery format, station generation, market and service rules. The August 7 firefly announcement is stronger evidence than a future plan because NIO linked it to the first live fifth-generation stations. It does not mean every firefly can immediately use every NIO station.
NIO has also announced cooperation with external automakers. A signed agreement is not the same as active customer access: pack dimensions, electrical interfaces, software, payment and safety certification all need to align. Readers should distinguish a framework agreement, a jointly developed standard, a compatible production model and a live service.
How does NIO compare with charging and CATL Chocolate Swap?
Battery swapping is not a universal replacement for fast charging. Home charging is usually more convenient for drivers with private parking, while high-power public charging works across a wider range of vehicles. Swapping is strongest where users drive long distances, lack home charging, value predictable stop times or use fleets with high daily utilization.
CATL’s standardized Chocolate Swap network provides a different model: a battery supplier seeks compatibility across automakers. BYDToday’s CATL Chocolate Swap tracker follows that network separately. NIO’s advantage is a decade of vehicle-network integration; CATL’s potential advantage is a broader supplier ecosystem. Neither approach has made one universal passenger-car swap standard.
What should readers watch next in 2026?
- Fifth-generation scale: count completed stations after the first live sites rather than repeating rollout targets.
- firefly availability: check real vehicle and station access in the app, not only network-level announcements.
- Utilization and economics: swaps per site and revenue quality matter more than an undated station total.
- Partner production models: real customer access is stronger evidence than framework agreements.
- International coverage: NIO’s asset-light European strategy may not reproduce China’s dense swap network market by market.
Frequently asked questions about NIO battery swap
How long does a NIO battery swap take?
NIO says the physical swap averages about three minutes. The full stop also includes vehicle positioning and system checks, so actual visit time can vary.
Does BaaS mean the battery is free?
No. BaaS lowers the vehicle purchase price by separating the battery, then charges a recurring subscription under the applicable contract.
How many NIO battery swaps have been completed?
NIO passed 120 million cumulative battery swaps on August 7, 2026, according to a verified announcement by William Li.
How many NIO Power Swap Stations are there?
NIO opened its 4,000th Power Swap Station in Quanzhou on August 7, 2026. The announcement did not provide a new country-by-country split.
Are NIO’s fifth-generation swap stations live?
Yes. NIO said the first fifth-generation Power Swap Stations entered service on August 7, 2026. The current announcement did not publish a full English technical specification sheet.
Can firefly vehicles use NIO swap stations?
NIO said firefly formally joined the battery swap network as the first fifth-generation stations went live. Actual access still depends on the vehicle, station, market and current app availability.
Is battery swapping cheaper than fast charging?
There is no universal answer. The comparison depends on the BaaS contract, swap allowance, electricity prices, charging access, driving frequency and ownership period.
Sources
- William Li, NIO passes 120 million cumulative battery swaps, August 7, 2026
- William Li, 4,000th Power Swap Station and first fifth-generation stations, August 7, 2026
- NIO, NIO achieves 100 million battery swaps, February 6, 2026
- NIO, NIO Power official overview
- NIO, 2019 recall of 4,803 ES8s
- HKEX, NIO annual-report recall-cost disclosure
- NIO Investor Relations, NIO 2025 annual report on Form 20-F
- BYDToday, Source Methodology and Editorial Policy
