← Testing Methods · Entity: TestingStandard · ID: WBH-STD-UL1973

UL 1973

Stationary storage safety · Region: North America

Direct answer: UL 1973 is a north america standard for Stationary storage safety of Lithium-ion / other batteries. Safety standard for stationary energy-storage batteries — cell, module and system abuse and thermal-runaway requirements.

Quick facts

StandardUL 1973
RegionNorth America
Battery chemistryLithium-ion / other
Test objectStationary storage safety
ScopeSafety standard for stationary energy-storage batteries — cell, module and system abuse and thermal-runaway requirements.

What this standard covers

Test object: Stationary storage safety for Lithium-ion / other batteries. Scope: Safety standard for stationary energy-storage batteries — cell, module and system abuse and thermal-runaway requirements.

Standards define test procedures and pass criteria — the measured values are only comparable when the same standard and conditions apply. See the CCA reference for the standards' measurement context.

How this test is used

UL 1973 is used to assess stationary storage safety for lithium-ion / other batteries in North America. The result is only meaningful when the sample, conditioning and test conditions match the standard; a number without those details is not comparable.

What to request from a supplier

Related standards

Compare with other chemistry-specific standards in the standards index, and check the manufacturer's claimed certificates against the underlying test report.

Common misapplication

Two failures account for most disputes: comparing results obtained at different test temperatures, and treating a supplier's summary as raw data. Ask for the clause tested and the conditioning; if either is missing, the result cannot be compared with another laboratory's.

Frequently asked questions

What does UL 1973 cover?

Safety standard for stationary energy-storage batteries — cell, module and system abuse and thermal-runaway requirements.

Which batteries does UL 1973 apply to?

Lithium-ion / other batteries in North America. The object is Stationary storage safety.

What should I request from a supplier?

The exact edition and clause tested, sample conditioning and test temperature, raw data, and the laboratory accreditation scope for this test.

Related

Return to Battery Testing Methods · World Battery Hub · Methodology. Informational, not purchasing advice.

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