Tata Nexon EV sudden low-SOC battery drop: what should owners verify before warranty expires?

Some Tata EV owners are discussing a repeatable pattern where the displayed charge falls unusually quickly near the lower end of the battery state of charge. That does not prove every Nexon EV has a battery fault, but it raises a practical diagnostic question for owners whose cars behave this way.

What should an owner check?

• Repeatability: note the starting charge, distance, speed, terrain, air-conditioning use and outside temperature when the sharp drop occurs.
• Vehicle diagnostics: ask the authorised workshop for a written job card, diagnostic report and battery-health assessment instead of relying only on the dashboard range estimate.
• Evidence: keep dated photos or video of the instrument display, charging records, service invoices and written workshop responses.
• Warranty terms: check the exact battery and motor coverage that applies to the vehicle's model year, variant, registration date and mileage. Coverage should not be assumed from a general headline.
• Escalation: if the symptom is repeatable but unresolved, request a case number and written next steps through the manufacturer's official service channel.

For owners who have seen a sudden drop below roughly 30% state of charge, which evidence or diagnostic result helped separate a faulty battery or cell imbalance from normal range-estimation variation? Did the workshop provide a clear test report, repair timeline or warranty decision?