Read the definition before the number
The same-looking number can answer different questions depending on its units, reference and date. This table is an interpretation aid, not a complete legal data schema or a promise that every field is publicly accessible.
| Field family | What to ask |
|---|---|
| Identity | Which individual battery or battery model does this record identify? |
| Capacity / performance | Is the figure rated, gross, usable or currently measured? Under what conditions? |
| Durability | Does this describe a test, an expected characteristic or an observation in use? |
| Repair / disassembly | Who is permitted to access and use the information? Does it require professional training? |
| Sustainability | What boundary and method does the environmental figure use? |
| Reuse / recycling | Does this describe a future possibility, instructions or the battery’s actual status? |
Missing is not zero
If a field is inaccessible or not provided, preserve that uncertainty. Do not replace a missing SoH with a model average or interpret an absent repair record as evidence of no repairs. Keep the original labels alongside any explanation.
Using a field in an EVVerity tool
Only transfer a value when its meaning matches the calculator input. A gross energy figure is not the original usable baseline. An environmental rating does not determine driving range. Review our data labels and methodology before combining records.
Translate a field into a usable question
Preserve the original field name before interpreting it. For an energy value, record its unit and whether it describes a rated specification, usable energy or a dated assessment. For a percentage, record the reference value. For a status, identify the criteria behind that status. None of these labels should be inferred solely from how prominent a number looks on a screen.
| If you see | Ask | Avoid |
|---|---|---|
| A capacity value in kWh | Gross, usable, original or current? | Putting a gross figure into an original-usable input |
| A health percentage | Which method, baseline and date? | Relabelling every percentage as measured BMS SoH |
| A missing repair field | Unavailable, restricted or genuinely empty? | Assuming no repairs ever occurred |
| An environmental value | What calculation boundary and unit? | Treating sustainability as a battery-condition score |
Further reading & scope
Battery Passport explained, with the official EU regulation source. This page is EVVerity’s practical reading checklist, not a compliance specification. Reviewed 23 September 2026.