How to Use This Tool
Turn one measured charging session into a reproducible local CSV row. Generate an EV charging-session CSV row from date, odometer, state-of-charge change, delivered energy and cost, with derived checks.
The exact task
Charging notes recorded in different column orders or unit conventions become difficult to compare across home, work and public sessions. This page transforms only session date (yyyy-mm-dd), odometer, starting soc percent, ending soc percent, energy delivered kwh, session cost. It does not fetch a remote resource, inspect an account, guess an omitted schema or claim that syntactically tidy output is operationally safe.
Transformation rule
Validate the entered fields, preserve them in a fixed six-column CSV schema, compute SOC gain as end minus start and cost/kWh as cost divided by delivered energy. The default fixture is executable, so a future change that alters punctuation, ordering, escaping or validation will fail before publication. Try a small representative sample first and compare every generated token with the source.
How to interpret the output
Append the generated row to a personal ledger only after confirming the date, currency and whether the charger reports delivered or battery-stored energy. The supporting outputs—state-of-charge gain, cost per delivered kwh—make the transformation auditable rather than presenting one opaque block to copy.
Assumptions
- Energy means charger-reported delivered kWh.
- Cost uses one chosen currency.
- Odometer unit remains consistent across the personal ledger.
Keep the original text unchanged until the result has been tested in the destination system. Browser processing protects against an upload by this calculator, but it does not make sensitive material appropriate to paste into an untrusted device or extension.
Limitations and safety boundary
It does not read a vehicle or charger, verify calendar dates, infer battery efficiency, prescribe charging, calculate tax or synchronize a cloud account. This is a preparation and review tool, not a standards-complete parser, security assessment, legal determination or production deployment system.
Source and verification
The transformation rule was checked against U.S. Department of Energy — Energy Saver on 2026-08-26. Recheck the destination specification when its grammar can change. All processing here runs in the current browser tab; ecech receives no input through a calculation API.
Sources & assumptions
Tool Spec v2 · verified 2026-08-26. Platform rules and fees can change; the editable inputs remain authoritative for your account.
Official references
- U.S. Department of Energy — Energy Saver (checked 2026-08-26)
Model assumptions
- Energy means charger-reported delivered kWh.
- Cost uses one chosen currency.
- Odometer unit remains consistent across the personal ledger.
- It does not read a vehicle or charger, verify calendar dates, infer battery efficiency, prescribe charging, calculate tax or synchronize a cloud account.
