Verifying a supplier’s UL 1973 compliance is essential to avoid misleading claims and ensure project safety. Here’s how to do it:
- Check the Certification Mark: Look for a UL Listed or UL Recognized Component mark on the battery nameplate, which should include a UL file number.
- Use UL Product iQ: This public database allows you to verify the file number, manufacturer, product category, and scope. Ensure the model numbers match exactly, including any suffixes for optional features.
- Review the Scope of Evaluation: Confirm that the tested configuration—cell supplier, BMS version, enclosure materials—matches what you intend to purchase. Component substitutions can invalidate the certification.
- Request Key Documents: Ask for the Conditions of Acceptability (CoA) for Recognized Components, UL 9540A test reports, UN 38.3 transportation test reports, and material flame ratings.
- Spot Red Flags: Be wary of claims like ‘UL 9540A certified’ (it’s not a certification), certificates lacking file numbers, or model numbers that don’t match the UL database.
By following these steps, buyers can ensure they are procuring genuinely compliant batteries.
This answer is sourced from Posts《UL1973 listed LiFePO4 battery》