Cross-border after-sales support mainly comes from three channels: 1. Contract terms: Reputable exporters commit in the sales contract to engine and gearbox coverage for 30 days after pickup, excluding wear-and-tear items. Get this in writing before paying. 2. Inspection report: The pre-shipment inspection report is your baseline. If the car arrives with problems that contradict the report (e.g., hidden accident damage not disclosed), you can file a claim against it. 3. Parts supply: For mainstream Chinese brands, spare parts channels exist in Russia, Central Asia, the Gulf, and Africa. Many exporters will help you source and ship parts after delivery. Practical tips: inspect the car on arrival and photograph everything; report any issue in writing within 48 hours; keep all shipping documents. Claims filed weeks later are hard to prove.

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.

The industry-standard structure protects both sides. Pay 20-30% deposit after signing the contract and verifying the exporter's license—never more. The balance is paid only after your independent inspection report confirms the car matches the contract, ideally against a copy of the bill of lading so the exporter can't ship a different vehicle. For extra protection, tie payments to milestones: deposit on contract, second tranche after inspection passes, final payment when shipping documents are released. Some buyers use escrow services or trade assurance platforms for the first transaction with a new supplier; fees run 1-3% but are worth it for large amounts. Always pay to a corporate bank account matching the exporter's registered name. Keep every agreement in the written contract—verbal promises like 'we'll fix that before shipping' are unenforceable. If an exporter demands 50%+ upfront or full payment before inspection, walk away; that structure leaves you with no leverage.