wattbench
Batteries playbook

Battery Backup Did Not Operate

Record the outage, essential-load behaviour and battery state needed to assess a backup event.

Sources listedReviewed July 2026Our methodology
Safety boundaryRead first

Do not energise circuits by improvised means, open backup equipment or alter switchboard wiring. Treat damaged, hot or abnormal battery equipment as urgent.

Field runner

Reconstruct the event

Stage 1 of 30/9 checked
Evidence handoff

Keep the evidence with the job

These device-local checks are working state, not evidence. Save actual readings, observations and the outcome in a job record.

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View the complete procedure
01

Reconstruct the event

  1. Record outage start, duration and whether the grid actually failed at the site.
  2. List which essential circuits stayed on, dropped out or cycled.
  3. Capture battery state of charge, reserve and alerts immediately after the event.
02

Check expectations

  1. Compare the observed loads with the documented backup circuits and power limits.
  2. Note high-starting-current equipment that attempted to run.
  3. Confirm whether backup was enabled and commissioned, without changing installer settings.
03

Hand over

  1. Provide the timeline, load list, screenshots and model details to the installer.
  2. Ask for transfer operation, configured limits and commissioning records to be checked.
  3. Keep the incident with the saved job and field report.
Source ledger3 sources
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