EVSE Testing After Commissioning: Site Checklist

Start with site and change history

Record the charger identifier, location, connector, rating, hardware and firmware, backend configuration and reason for the visit. Review commissioning results and recent repairs before energizing tests so the procedure addresses what changed without losing the original acceptance baseline.

Complete visual, supply, grounding and connector checks required by the site's safety procedure. Confirm that the tester, adapters and external load are rated for the planned session and that the charging area can be controlled during the work.

• ✓ Identify the charger and change reason
• ✓ Review commissioning baseline
• ✓ Complete site safety preconditions

Run a repeatable functional sequence

Use the same normal connection, readiness, charging and stop sequence for routine comparisons. Record pilot or communication state and measured output at defined points instead of relying only on a successful session indicator.

Add targeted checks for the changed subsystem, such as communication after a firmware update, switching after contactor work or measured output after a power-module replacement. Avoid broad fault injection at a live site unless the approved procedure and equipment explicitly support it.

Close the visit with actionable evidence

Retain tester configuration, timestamps, measured values, message or waveform evidence where needed, result limits and observed charger alarms. Distinguish a confirmed failure from an inconclusive test caused by site supply, network, load or access limits.

Compare the new record with commissioning or the last known-good visit. If the issue requires laboratory reproduction, preserve the charger firmware, configuration and last completed protocol state so the engineering team can recreate the failure efficiently.

• ✓ Save repeatable baseline results
• ✓ Record site limitations
• ✓ Preserve evidence needed for escalation