Eneramp

Battery pack claim; verification pending. A manufacturer claim, not a listing or certificate. Printed as "UL 1973 Certified. Standard for Batteries for Use in Stationary, Vehicle Auxiliary Power and Light Electric Rail Applications." under Specifications, Listings & Certifications, of Eneramp's Endurance 5 Owner's & Operator's Manual V1.0 (SKU E-030001, Rev 1.0, 2025-12-29, web edition), captured September 29, 2026; its NEC Article 706 table (706.7 Listing Requirements) adds "The Endurance 5 is UL 1973 and UL 9540A certified; UL 9540 system-level testing is in progress." Eneramp's Endurance 5 spec sheet (Rev 1.1, January 2026, captured September 29, 2026) prints "UL 1973" among its marks on page 1. The manual does not say whether the claim covers the cells or the assembled battery. No issuer, certificate or report number is printed; the issuer's record was not checked.

Official installation manual: Eneramp Endurance 5 Owner's & Operator's Manual V1.0 (SKU E-030001, Rev 1.0 2025-12-29), web edition Rev Rev 1.0 · December 29, 2025 · Checked Sep 29, 2026 · Earlier documentOfficial datasheet: Eneramp Endurance 5 spec sheet, Rev 1.1, January 2026 Rev Rev 1.1 (January 2026) · Checked Sep 29, 2026 · Earlier document

Observed Sep 29, 2026

UL 9540A: claimed

Eneramp Endurance 5 51.2V 100Ah Rack-Mount LiFePO4 Battery

Battery pack claim; verification pending. A manufacturer claim of testing, not a certification or test report. Printed as "UL 9540A Certified. Test Method for Evaluating Thermal Runaway Fire Propagation in Battery Energy Storage Systems (cell and module level)." under Specifications, Listings & Certifications, of Eneramp's Endurance 5 Owner's & Operator's Manual V1.0 (SKU E-030001, Rev 1.0, 2025-12-29, web edition), captured September 29, 2026, which adds under "A Note on UL 9540A vs. UL 9540": "UL 9540A is a test method that evaluates whether thermal runaway in a single cell propagates to adjacent cells and modules. The Endurance 5 has passed this testing." Eneramp writes "Certified" for a test method; the manual names no laboratory and no report. The same section prints "UL 9540 Testing in progress", so no UL 9540 row is recorded. No test report number is printed; no report was checked.

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