Sourced fact
A single predicted-range display is contextual evidence and must not be converted into remaining usable capacity.
Used EV evidence · UK
Usable capacity is not dashboard range
A dashboard range figure is not a measurement of usable battery capacity. Usable-capacity SoH compares measured current capacity with a stated initial reference under defined conditions. Record the display as context, then seek vehicle-specific evidence before relying on a seller's battery claim.
Reviewed
Key facts and evidence
For UK used-EV buyers, as of 13 August 2026, a dashboard range prediction should be recorded as context rather than converted into battery capacity. The E2 Huo definition requires calibrated capacity and a reference capacity. One display cannot separate battery condition from its test cycle, temperature, route, charging conditions or other assumptions.
Sourced fact
The Huo capacity metric compares calibrated current pack capacity with calibrated initial pack capacity.
Sourced fact
Date, test cycle, temperature, route and charging conditions are needed to understand a seller's range evidence.
A dashboard range estimate reflects its own assumptions and recent context, while usable battery capacity requires a defined measurement.
Two different questions
Dashboard range asks how far the vehicle's system predicts it may travel in a particular context. Usable capacity asks how much charge the pack can deliver under a stated measurement method and against a stated reference.
Evidence and date
The capacity definition comes from Huo and colleagues, published on 11 January 2021 and present in the E2 build checked on 13 August 2026. E3 verified the official OZEV range-evidence source on 12 August 2026.
Why one screen is limited
A single screen does not isolate the battery from the conditions and assumptions behind the prediction. It also does not establish what usable capacity was measured, which reference was used or how repeatable the result is.
Next step for a buyer
Follow E3 row e3-s11-007: retain the display with its state of charge and context, and request dated vehicle-specific support. If the claim materially affects the purchase and remains unclear, refer it to an independent battery assessor.
What to do next
The displayed prediction does not establish roadworthiness or provide a driving decision for this vehicle.
Immediate action: Keep the displayed range and state of charge together with their date and conditions.
- Do not rely on the seller's claim when its vehicle identity, date, method or operating context is absent.
Checks that stay with this vehicle
Record the displayed state of charge and predicted range, then request the claim's date, test cycle, temperature, route and charging conditions.
The display remains labelled as an estimate with enough context for a like-for-like review.
Treat the range claim as unverified if its conditions or vehicle-specific supporting records cannot be supplied.
Professional hand-off
- Ask an independent EV battery assessor or manufacturer-authorised repairer to review a material claim that remains unsupported.
Questions this record can answer
What does the sourced evidence say about two different questions?
Dashboard range asks how far the vehicle's system predicts it may travel in a particular context. Usable capacity asks how much charge the pack can deliver under a stated measurement method and against a stated reference.
What does the sourced evidence say about evidence and date?
The capacity definition comes from Huo and colleagues, published on 11 January 2021 and present in the E2 build checked on 13 August 2026. E3 verified the official OZEV range-evidence source on 12 August 2026.
What does the sourced evidence say about why one screen is limited?
A single screen does not isolate the battery from the conditions and assumptions behind the prediction. It also does not establish what usable capacity was measured, which reference was used or how repeatable the result is.