Common Safety Standards for Lithium-ion Batteries

Jun 08, 2026

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IEC 62133: International safety standard for portable Li-ion batteries, covering overcharge, short circuit, thermal abuse, etc. Foundation for CB certification.
IEC 62619: Safety standard for industrial and energy storage Li-ion batteries, applicable to large battery packs (e.g., ESS, power tools).
UL 1642: North American safety standard for Li-ion cells, includes tests for short circuit, overcharge, crush, impact, etc.
UL 2054: North American safety standard for Li-ion battery packs, covering electrical, mechanical, environmental, and enclosure tests.
UN38.3: Mandatory transport standard for Li-ion batteries (air/sea/land), includes 8 tests, requires test summary report.
GB 31241: China's safety code for Li-ion batteries used in portable electronics; CCC mandatory certification since 2024.
GB 38031: China's safety standard for traction batteries of electric vehicles (effective 2026), requiring no fire/no explosion after thermal runaway.
CE Marking (EU): Requires compliance with IEC 62133, REACH, RoHS, and EMC.
PSE Marking (Japan): Based on JIS C 8714, marked with circular PSE logo.
KC Marking (Korea): Based on KC 62133, valid for 5 years with annual audits.

Professional English Translation

Common Reasons Why Lithium Batteries Lose Capacity