← Full guide: EV Battery Warranty: Capacity Clauses and Exclusions to Check

Audit the warranty before you need it

Audit the warranty before you need it. Check the cause, evidence to keep, exact recovery steps, and escalation. Based on EV Battery Warranty.

Start here

Separate defects/material failure from any capacity-retention promise. They may use different tests and remedies.

What applies to this exact problem

1. Identify the warranty type

Separate defects/material failure from any capacity-retention promise. They may use different tests and remedies.

2. Write down both limits

Coverage may expire by time or kilometres, whichever comes first. Record the in-service date and odometer baseline.

3. Read exclusions before buying used

Look for collision, flood/water, modification, unauthorised repair, commercial use, charging or storage conditions and maintenance requirements.

4. Understand the claim remedy

Ask whether the remedy is repair, module replacement, remanufactured part or full-pack replacement and who pays diagnostics, towing or labour.

5. Preserve battery-health evidence

Keep service records, warnings, software updates and diagnostic reports. A trend is more useful than one range complaint.

Check these first

  • Record the symptom before repair or reset changes the evidence.
  • Ask for the diagnostic result and the exact warranty or policy clause used for the decision.
  • Compare the measured fault and service history with the written coverage, not a verbal “wear and tear” label.

Fix it in this order

  1. Record the symptom before repair or reset changes the evidence.
  2. Ask for the diagnostic result and the exact warranty or policy clause used for the decision.
  3. Capture vehicle model, VIN, battery/charger serial where available, odometer, warning codes, and the exact symptom.
  4. Ask the authorised service centre for diagnostic findings and the warranty clause used for approval or denial.
  5. Separate normal range variation from a measurable fault using repeatable conditions, charging logs, error codes, or state-of-health evidence.
  6. Keep invoices, job cards, firmware/service history, and photographs of warnings or damage.
  7. For subsidy/incentive issues, verify model eligibility, invoice treatment, registration details, and portal status independently.

Build the proof pack

  • Purchase invoice and warranty
  • Job cards/diagnostic report
  • Charging/range/error evidence
  • Subsidy or portal application record where relevant

Avoid making the case harder

  • Opening or repairing high-voltage components yourself
  • Accepting a warranty denial without the clause/reason
  • Assuming brochure range is guaranteed in every condition

How you know it is really fixed

  • The defect or claim has a written technical decision tied to the applicable terms.
  • Repair, replacement, payment, or denial is complete and documented.

If it is still not fixed

  1. Manufacturer/dealer grievance
  2. Scheme/portal helpdesk when incentive-related
  3. Consumer remedy for unresolved product/service disputes

Official sources from the full guide

Need the complete context?

This page solves one branch. The parent guide covers the full decision, edge cases, alternatives, and related checks.

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