For traction-battery condition, first define what a pass looks like. Then compare the actual vehicle with that standard using documents, inspection media and destination advice.
Decide traction-battery condition
Identify chemistry, rated capacity, production date and pack code for the exact DM-i or EV candidate. Separate temporary range prediction from measurable battery and charging behaviour.
Evidence for traction-battery condition
Request diagnostic state data, cell-voltage spread where available, thermal and isolation faults, charge records, underside images and controlled AC/DC sessions. Record ambient temperature and state of charge.
Export and ownership exposure
A car can drive normally while carrying weak cells, cooling faults, impact damage or region-limited charging. Shipping acceptance may require current battery declarations and state-of-charge control.
Apply the decision to a real candidate
Compare energy accepted with displayed state-of-charge change while allowing for losses. Price unresolved pack damage as a rejection risk rather than an easy repair.
Build the VIN-linked record
Keep one dated decision log. Each entry should identify the source, vehicle, finding and next action for battery identity, diagnostic state, cell balance. Attach commercial evidence separately so technical acceptance is not rewritten by negotiation.
Common approval mistakes
The common shortcut is treating a model-level fact as candidate proof. Verify battery identity physically and on records, qualify thermal history by destination, and exclude any unconfirmed feature from the value calculation.
Close the decision
Before this file advances, reconcile battery identity with the vehicle and its documents, and price any unresolved cell balance consequence. Record who controls charge behaviour after arrival. If the answer exists only in an informal message, move it into the dated approval record or leave the candidate on hold.
Independent review for traction-battery condition
For traction-battery condition, assign each approval field to a reviewer with the relevant competence. Record candidate evidence for battery identity, diagnostic state, cell balance, then obtain destination or commercial confirmation for thermal history, underbody condition, charge behaviour where required. Every conclusion should identify its source, date and VIN. If two reviewers interpret a field differently, keep it open until the underlying document, photograph, diagnostic result or written third-party answer resolves the difference.
Arrival controls for traction-battery condition
Before loading, freeze the accepted VIN, identity, condition, odometer, warning state, keys, accessories and unresolved exceptions. On arrival, compare those records before cleaning, repair, software changes or routine use. Recheck any open item involving thermal history, underbody condition, charge behaviour, preserve evidence for a timely carrier or supplier claim, and update the ownership file with actual destination findings and costs.
Translate the guide into a buyer brief
A workable brief for traction-battery condition names the destination market, intended route pattern, home or public charging plan, required equipment and acceptable exceptions. It also distinguishes a preference from a condition of purchase. Use battery identity and diagnostic state as evidence gates, not seller questions with yes-or-no answers. Ask for the underlying label, screen, document, test result or dated photograph. That record lets a second reviewer reach the same conclusion without depending on the listing description.
Stress-test the shortlisted vehicle
Before approval, model one difficult ownership week: low battery, unavailable preferred charger, a warning message, a parts request or an unexpected registration query. Check whether cell balance, thermal history and underbody condition leave a practical route forward. The purpose is not to predict every fault. It is to expose a dependency whose cost or delay would change the purchase decision, then record who accepts that dependency.
Check BYD Song Plus Battery Health Before Export: approval checklist
Mark each item confirmed, unresolved or rejected and retain its evidence under the candidate VIN.
- Battery identity
- Diagnostic state
- Cell balance
- Thermal history
- Underbody condition
- Charge behaviour
Buyer questions about traction-battery condition
Is Blade Battery immune to degradation?
No battery is immune to age, use, temperature or damage.
What is a useful battery test?
Combine diagnostics, physical inspection and controlled charging.
Can range display be trusted?
It is contextual, not a health certificate.