IEC 62133 Lithium Battery Safety Certification
1 resources tagged with "Iec 62133"
IEC 62133-2:2017 is the core safety standard for secondary lithium cells and battery packs, and it's the gateway to most market approvals — it underpins CB Scheme reports that convert into national certs. The test scope covers external short circuit, overcharge, forced discharge, crush, and thermal abuse. Accredited Chinese labs (CB-recognized) can run it, but you must decide whether you certify at cell level or pack level, since a certified cell does not automatically make a compliant pack.
When sourcing batteries, a frequent gap is a factory showing a cell-level 62133 certificate while the finished pack — with its BMS and wiring — was never tested. We confirm whether certification is cell or pack level, check the CB report scope, and pair it with UN 38.3 for transport.
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FAQ
What does IEC 62133-2 testing cover?
It covers electrical and mechanical abuse tests for lithium cells and packs — external short circuit, overcharge, forced discharge, crush, and thermal/mechanical stress — to prove the battery won't catch fire or vent under fault conditions.
Is a cell-level IEC 62133 certificate enough for my pack?
No. Cell-level certification doesn't cover your specific pack design, BMS, or wiring. For a finished battery pack you generally need pack-level testing or a documented evaluation referencing the certified cells.
How much does IEC 62133 certification cost in China?
A CB Scheme IEC 62133-2 test at an accredited lab typically runs USD 3,000–8,000 depending on cell chemistry and pack complexity, with 3–6 weeks turnaround.
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