Standard for Safety — Household and Commercial Batteries
UL 2054 is a US safety standard covering household and commercial battery packs — including lithium-ion, nickel-metal hydride, and other rechargeable chemistries used in consumer electronics, power tools, portable medical devices, and similar applications. It is the primary UL certification pathway for battery packs in consumer products and is widely recognised by retailers and market regulators as evidence of baseline battery safety.
Published by: UL Standards and Engagement
Current edition: UL 2054:2021 (3rd edition)
Related standards: UL 1642 (lithium cells), IEC 62133-2 (EN equivalent), UL 62133 (UL adoption of IEC 62133)
Scope
UL 2054 applies to battery packs (not individual cells) used in household and commercial applications. It covers packs with lithium-ion, Li-polymer, NiMH, and NiCd cells. The standard addresses pack-level safety including overcharge, over-discharge, short circuit, mechanical abuse, and environmental tests. It is required for battery packs sold in major US retail channels and specified by OEMs supplying consumer electronics products.
Key Requirements and Tests
Electrical Safety Tests
Tests include overcharge (at 1.5× maximum charge voltage), short circuit (at ambient and elevated temperature), forced discharge, and abnormal charging. The pack must not catch fire, explode, or leak electrolyte. Protection circuit must activate and limit voltage/current within specified thresholds.
Mechanical and Environmental Tests
Crush, impact, drop, and vibration tests assess pack structural integrity. Temperature cycling, humidity, and altitude tests verify safe operation across the intended use environment. Marking requirements include rated voltage, capacity, maximum charge current, and cell chemistry.
Disclaimer: This is not a definitive guide, just an indication and it is important that you always go back to the source for legislation.
References
- UL 2054, UL Standards
See also: UL 2272