UL 1973: claimed
Eneramp Endurance 5 51.2V 100Ah Rack-Mount LiFePO4 BatteryBattery 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 · Earlier documentOfficial datasheet: Eneramp Endurance 5 spec sheet, Rev 1.1, January 2026 Rev Rev 1.1 (January 2026) · Checked · Earlier document