Plan for roughly 25-40% on top of the vehicle price. The main items are: 1. Pre-purchase: deposit (10-30%), third-party inspection fee (100-300 USD). 2. In China: inland trucking to the port, export declaration fees. 3. Shipping: ocean freight (container 20ft usually 1,500-4,000 USD depending on destination), marine insurance (about 0.3-0.5% of car value). 4. In your country: customs duty, VAT/GST, port handling and storage, customs broker, quarantine or pre-shipment inspection if required, registration and plates. Always ask the exporter for an itemized landed-cost estimate for your specific port before paying the deposit, and confirm which Incoterm the quote is based on (FOB, CIF or DDP makes a big difference).

Handling claims with an overseas exporter works best when expectations are set before payment. Prevention: put the inspection standard, photo/video evidence requirements, and a dispute clause into the sales contract. Keep all chat records and payment receipts. Typical process if issues arise: 1) Notify the exporter within 48-72 hours of delivery with photos/videos as evidence. 2) Most disputes fall into two buckets: shipping damage (handled via marine insurance — this is why insurance matters) or undisclosed mechanical defects (handled per contract, often via partial refund, spare parts, or repair cost sharing). Realistic expectations: exporters rarely accept returns, so negotiate compensation instead. A reputable company will usually cover reasonable repair costs for defects confirmed to pre-exist shipment. Tip: for higher-value cars, hire a local third-party inspection at destination as final evidence — it strengthens any claim significantly.

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.