Obtaining precise internal resistance at different SOC levels requires disassembling the battery pack and connecting it to a professional charge-discharge cabinet for several days of cycling tests. This is beyond the scope of non-destructive used car inspections; we only provide real-time estimated internal resistance data based on OBD port readings.

It depends on the brand and model, so verify before you buy. Three things to check. First, connectivity: many Chinese EVs use embedded SIMs tied to Chinese carriers. Abroad, remote app control, live navigation and some cloud services may stop working unless the car can switch to a local SIM or the brand operates servers in your region. Second, language and navigation: ask the exporter to show the system menu in English or your language, and confirm the maps can be switched to your region — some head units carry China-only map data. Third, charging: verify the charge port standard (GB/T, CCS or Type 2) and whether the onboard AC charger accepts your local grid voltage and frequency. Also ask about OTA updates: official overseas models usually receive them; grey-import cars often do not. Get these answers in writing from the seller, and test the connected features over a video call before shipping.

We conduct basic visual inspections and freezing point tests. If the antifreeze's freezing point is insufficient or the engine oil is severely degraded, we will document it. However, considering the shipping duration, we strongly recommend a comprehensive "Full Fluid Service" upon arrival.