CATL Launches "Chocolate Battery Butler" Inspection System, Promises Lifetime Warranty and Free Replacement

On November 13, CATL released its battery visualization full-lifecycle detection system, the "Choco Battery Butler," providing lifetime monitoring, lifetime warranty, and lifetime free repair and replacement services for batteries in the network. According to CATL, the system enables 53 on-vehicle self-checks and 66 in-depth inspections at battery swap stations. Choco battery swap blocks are continuously tracked for health status from the moment they are installed in vehicles, completing basic self-checks during vehicle operation and undergoing battery performance scans upon entering swap stations. These services are contingent upon the batteries being within the Choco battery swap network. In terms of swap network construction, CATL plans to have a cumulative 6,000 Choco battery swap stations built by 2027, covering 297 cities nationwide and achieving essentially full coverage of prefecture-level cities and municipalities directly under the central government in mainland China. The first batch of stations was launched in December 2024 when the Choco battery swap brand was unveiled; by the end of 2025, 1,020 stations had been built; and as of September 2026, the number had expanded to 2,520 stations, covering 200 cities.