UPS self test passes but runtime estimate wildly inaccurate

Minimal guidance for messy support realities.

Scenario

A UPS looks healthy in self-tests, but real runtime under load is far lower than expected.

Recommended Resolution Path

  1. Review battery age, calibration history, and actual load percentage.
  2. Check whether recent equipment changes increased draw without updated sizing.
  3. Run a controlled calibration or vendor-recommended runtime test if safe.
  4. Update documented runtime expectations so business continuity plans stay realistic.

Technician Notes

Document what changed, what confirmed the fix, and whether the issue points to a broader standards gap worth addressing for the client.