How condition and range are estimated

• · Declared usable capacity is used where it is sourced, not assumed from the badge.
• · Observed energy use across recorded journeys is compared with distance covered to infer usable capacity.
• · Charging sessions contribute charge accepted against state-of-charge change, allowing for charging losses so capacity is not overstated.
• · Imported BMS, OBD or telematics values raise the evidence level but are still owner-supplied unless independently tested.
• · State of health is expressed as a band around the inferred usable capacity, widened when evidence is thin or inconsistent.

• · Summer, winter and loaded bands come from the same capacity estimate with different consumption assumptions.
• · Temperature, payload, road type and climate use each widen or shift consumption.
• · A usable reserve is always kept back; range is never quoted to zero.

Confidence follows the evidence level, the number and consistency of records, and how recent they are. Every result names the level it reached:

• · Level 0 — Insufficient evidence
• · Level 1 — Profile estimate
• · Level 2 — Observed performance
• · Level 3 — Vehicle data supported
• · Level 4 — Independently tested