Free checklist
Uninterruptible power supply (UPS) annual maintenance checklist
The annual UPS service is the deep pass: the measurements, cleanings and tests a quarterly round doesn't reach. This checklist keeps the full service on record with the photos that make it defensible later. Work is commonly verified against NEC (NFPA 70), manufacturer's published instructions. Confirm the edition your authority having jurisdiction has adopted.
- Items
- 5
- Photos required
- 7
- Built for
- Subcontractors
Who runs it
The UPS service tech on the annual, coordinated with a maintenance window for the protected load.
When in the schedule
Once a year, scheduled when critical loads can be moved to bypass and when a real discharge test won't leave equipment unprotected.
The checklist
Every item, and the photo that proves it
The photo count on each row is what RTI would require before the item can be submitted. Copy the list as is, or load it into RTI and let the gate enforce it.
Battery service
- 2 photos
Individual cell or block voltage and impedance measured
Each block read and compared across the string, outliers on voltage or impedance flagged, readings logged for trending against prior years.
- 1 photo
Battery terminals torqued and connections cleaned
Inter-cell links and terminals torqued to the manufacturer's value, corrosion cleaned, anti-oxidant reapplied where specified.
Transfer and bypass
- 2 photos
Manual bypass operated and verified
Load transferred to bypass and back per the sequence, no interruption to the protected equipment, indicators tracking the actual path.
Capacity proof
- 1 photo
Runtime confirmed by a discharge or load-bank test
Unit run on battery under a known load to a defined endpoint, actual runtime compared against the rating and last year's result.
- 1 photo
Calibration and firmware checked
Runtime and load calibration verified, controller firmware level noted against the manufacturer's current release.
What usually sends this back
The failures are almost always the evidence, not the work
- Battery string judged by overall voltage while one weak block drags the real backup time far below the display.
- Bypass never actually exercised, so the day it's needed for service nobody knows whether the transfer is clean.
- Discharge test skipped, leaving runtime a spec-sheet number never proven against the aged batteries actually in the cabinet.
Run it with the Photo Gate
A checklist nobody can submit half-finished
Load this list into RTI, stick a QR tag on the area it covers, and the submit button stays locked until every mandatory item is answered and the 7 required photos exist. Approved walks roll into a branded turnover package with a tamper-evident record behind every line.
Submission state
The gate is enforced on the server, so it holds even if the phone is offline when the walk happens.
Verified against
Common questions
- What does this uninterruptible power supply (ups) annual checklist cover?
- 5 items across 3 sections, covering battery service, transfer and bypass, capacity proof. Each item spells out what the person walking the job is actually looking for, not just a box to tick.
- Who should run this inspection?
- The UPS service tech on the annual, coordinated with a maintenance window for the protected load.
- When in the schedule should this walk happen?
- Once a year, scheduled when critical loads can be moved to bypass and when a real discharge test won't leave equipment unprotected.
- Why does every item ask for a photo?
- 7 of the 5 items call for photo evidence. A checklist answer without the photo is a claim; the photo is what makes the record worth something in a dispute and lets a reviewer approve work without re-walking the job.
- What most often fails a uninterruptible power supply (ups) annual inspection?
- Battery string judged by overall voltage while one weak block drags the real backup time far below the display. Bypass never actually exercised, so the day it's needed for service nobody knows whether the transfer is clean. Discharge test skipped, leaving runtime a spec-sheet number never proven against the aged batteries actually in the cabinet.
- Can I use this checklist in RTI?
- Yes. Start a free RTI workspace, build this list as a checklist, and the Photo Gate holds the submit button until every mandatory item is answered and its photos are attached. Approved inspections roll into a branded turnover package with a tamper-evident audit trail.
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