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Battery condition is the single biggest value factor in a used EV, and it can be measured — do not accept a verbal "battery is fine" without data. First, ask for a battery health certificate: brands like BYD, NIO, XPeng and Li Auto can generate an official state-of-health report from the VIN, usually within minutes at a dealer or via the brand's app. Look for SOH above 85% for a car under five years old. Second, request a charge-and-discharge test during inspection: the displayed range at 100% charge compared with the original rated range gives a practical health estimate. Third, check battery warranty status. Most Chinese brands offer 8 years or 150,000–200,000 km on the battery pack, and the remaining warranty usually transfers with the car — get this in writing. Fourth, for cars heading to hot climates, confirm the battery cooling system works; overheating is a common killer of battery life. Add a minimum SOH guarantee to your purchase contract so you have recourse if the battery underperforms.

Rules differ by country. Many markets limit the age of imported used cars (commonly 3-5 years), require left-hand drive, and set minimum emission standards such as Euro 4, 5 or 6. Some regions additionally require a local conformity certificate before the car arrives. Practical steps before any deposit: check your customs authority's official website, or spend 20 minutes with a local customs broker who imports vehicles regularly; give the exporter your country's requirements and the VIN, and ask for proof of the car's emission level (China's standards map roughly to Euro equivalents); confirm the exact model was legally exportable from China. A short verification call at the start can prevent the car being refused entry — or impounded — months later.