The battery pack is 30–50% of an EV's value, so its inspection should be the most detailed part of the pre-shipment check. Require these items: 1. BMS data readout: state of health (SOH), full-charge voltage, cell voltage deviation, cycle count, and fast-charging percentage. SOH above 90% is good; below 80% means a costly pack replacement is approaching. 2. Physical inspection: check the underbody for pack dents, coolant leaks from the battery cooling circuit, and corrosion on high-voltage connectors. 3. Range test: a real drive of at least 30–50 km, comparing energy consumption against the rated figure. A pack with poor cells overheats and depletes fast. 4. Charging test: verify both AC and DC charging work, and record charging speed and any error messages. Get the raw diagnostic data, not just a summary. If the inspector won't share the BMS report, assume the battery is the reason why.

A professional pre-purchase inspection in China normally covers five parts: exterior and interior condition, a lift inspection of the chassis and frame, engine bay checks, a road test, and OBD diagnostics. Prioritize the chassis rails and A/B/C pillars for cut-and-weld repairs, engine oil leaks and timing noises, transmission shift quality, and OBD fault codes — cleared codes leave telltale history data. For EVs, add battery pack casing, insulation values, and battery state of health (SOH). Insist on original timestamped photos with the VIN visible and a written conclusion such as 'fit for export' or 'major defects found.' A report that only says 'good condition' is not worth paying for.

It depends on the situation. If the video inspection reveals significant mechanical faults or structural damage not disclosed in the inspection report, the deposit will be refunded 100% unconditionally; however, if the buyer defaults for subjective reasons (such as suddenly not liking the color or financial issues), the deposit will be retained as compensation for taking the vehicle off the market.