Which standards and approvals need to be observed?

UN 38.3 Transport test

The UN 38.3 transport test, as described in the UN Manual of Tests and Criteria (MTC), section 38.3, is an internationally recognized series of tests for lithium-based single cells and battery packs. These tests are essential to ensure that battery packs are insensitive to external influences such as shock, vibration, short circuit or overcharging. Only after successful completion of this series of tests may battery packs be transported by road, rail, inland and ocean shipping as well as by air, with the exception of test samples themselves. The UN 38.3 test is a fundamental requirement for the safe and compliant transportation of lithium batteries.

IEC 62133 and UL 62133

IEC 62133 is an internationally recognized standard for portable, rechargeable batteries that are primarily used in devices such as medical electrical equipment (e.g. in accordance with EN 60601). Although approval with a CB report is not mandatory, it is explicitly required by many device standards to ensure the safety and performance of the battery packs.

UL 62133 is the North American harmonization of IEC 62133 and is essential for companies that want to bring their products to the North American market. With UL 62133 certification, a CB report for IEC 62133 can also be obtained. It is important to note that certification by Underwriters Laboratories (UL) requires regular production inspections in order to maintain the certificate. In addition, a sample must be sent to UL annually for requalification to ensure continued conformity and safety.

UL2054

UL 2054 is an important safety standard for batteries used in household and commercial appliances. This standard defines a variety of tests and criteria to ensure that battery packs work reliably and safely in electrical appliances. These include tests for short circuits, overcharging and operation under extreme conditions. UL 2054 is particularly widespread in North America and ensures that batteries meet the highest safety requirements. In order to meet the strict requirements, extensive test series are required, which increases the time and financial expenditure for certification.

Functional safety

We implement functional safety in accordance with IEC 61508 and its application-specific subsidiary standards (including ISO 13849 for machines / systems, ISO26262 for automobiles and motorcycles). The implementation of functional safety serves as proof of development according to the current state of the art in the event of product liability in accordance with the German Product Liability Act (ProdHaftG). Implementation begins with the identification and quantification of potential risks due to malfunctions of the system under consideration. Based on the potential risk, technical and methodical measures are implemented during development in order to provide proof of functional safety.