China Issues National Standard for In-Service EV Battery Testing

The significance here is less the testing methodology itself than the state's move to formalize how in-service battery health gets measured — a precondition for any market that prices used EVs or battery residuals. It matters most to used-car dealers, battery recyclers and insurers, whose valuations have depended on informal or proprietary diagnostics. The long lead time to March 2027 suggests industry is expected to adapt rather than comply immediately. Whether the standard becomes a reference point for cross-border battery valuation, and how testing capacity scales to the existing fleet, are the open questions.