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.

This is one of the most common disappointments after importing a Chinese EV, so check before you buy. Many Chinese EVs rely on an embedded SIM that only works on Chinese carrier networks. Once the car leaves China, remote functions — battery status, pre-conditioning, charging control, and locating the car — may stop working entirely. Some brands let you transfer the account to a foreign phone number, but many require a Chinese ID or Chinese phone number for registration, which you cannot provide. What to do before purchase: ask the exporter to test the app functions live on video while the car is still in China, including remote air-conditioning and battery percentage reading. Ask the brand's official customer service (in writing) whether overseas account activation is supported for your specific model and year. Workarounds if the official app does not work: some functions may still operate locally through the car's own settings, such as scheduled charging from the dashboard. Third-party OBD dongles with companion apps can sometimes restore battery monitoring and pre-conditioning. The car itself drives fine without connected services, but if app functionality matters to you, treat it as a purchase criterion, not an afterthought.

Comparing headline prices alone will mislead you—quotes often bundle or exclude different items. Build a like-for-like comparison before deciding. Request every exporter to break their quote into: vehicle price, domestic transport in China, export handling and documentation fees, inspection fee, ocean freight to your port, and insurance. Then add what they exclude: your country's customs duty, VAT/GST, port charges, and local delivery. Watch for common padding: "service fees" of 3-8% that appear only in the final invoice, inflated inland transport (a truck from Guangzhou to a port should rarely exceed a few hundred dollars), and freight quotes that assume a shared container while charging you for a full one. Ask each exporter to state validity (7-14 days is normal) and whether the price is FOB or CIF. Once normalized, the cheapest quote usually isn't the lowest number—it's the one with the shortest list of exclusions and the clearest terms.