HPQ Silicon’s ENDURA+ lithium-ion battery cells have received UL 1642 certification, a US safety standard required for commercial acceptance of lithium-ion cells. The certification covers its cylindrical 18650 (4,000 mAh) and 21700 (6,000 mAh) cell formats and clears the cells for US commercial sales.
The company says the UL 1642 milestone follows its earlier UN 38.3 transport certification and completes its US regulatory framework for the HPQ ENDURA+ cell platform. With both certifications in place, HPQ is moving from validation to commercialization, including immediate customer engagement and qualification discussions in the US market.
The UL 1642 evaluates cell-level safety through electrical, mechanical and thermal stress tests intended to simulate real-world use and failure scenarios, and is a prerequisite for downstream integration into certified battery packs and finished products because it applies at the cell level.
“Certifying at the cell level, is where real market access begins in the United States,” said Bernard Tourillon, President and CEO of HPQ Silicon Inc. “UL 1642 gives OEMs and integrators confidence that safety has been engineered into the core of the product, not added later at the system level. For HPQ ENDURA+, this removes a key qualification hurdle and allows commercial conversations to focus on performance, scalability, and integration rather than regulatory risk.”
Source: HPQ Silicon
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