Energy Storage Systems (ESS) Maintenance Checklist

As lithium-ion and large-scale battery storage become more common in renewable energy sites, EV fleets, and commercial buildings, so does the need for consistent fire safety oversight. Energy Storage Systems (ESS) carry unique risks – including thermal runaway, off-gassing and electrical faults – which can quickly escalate without early detection and proper control systems in place.

Routine maintenance ensures that your battery modules, detection devices and fire suppression systems remain fully operational. Over time, sensors may lose calibration, vents can clog and insulation may degrade, all of which can compromise system performance and safety. Proactive inspections help you catch early warning signs before they lead to costly damage or downtime.

Our Energy Storage Systems (ESS) Maintenance Checklist simplifies this process with structured inspection intervals and clear documentation steps for technicians and facility teams.

What’s Inside the Checklist

Your downloadable checklist covers:

• Daily / Weekly Tasks: Visual checks for battery swelling, leaks, and alarm panel status.
• Monthly & Quarterly Inspections: BMS log review, gas and smoke detection testing, and ventilation checks.
• Annual Maintenance: Full functional testing, electrical inspections, coordination with local fire departments.
• 5–10 Year Tasks: Sensor recalibration, suppression cylinder testing, and structural integrity reviews.
• Maintenance Log: Record of all inspections, findings, and system servicing.

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Consistent ESS maintenance not only protects your investment but also ensures safe, compliant, and continuous operation.

Download the checklist below to strengthen your fire safety strategy and keep your energy storage systems performing safely and efficiently.