J90-EBP48 48V 20Ah LiFePO4 1U External Battery Pack for J90-2kLiD/3kLiD

J90-EBP48 is a 48V, 20Ah lithium iron phosphate external battery pack in a 1U chassis for the Xtreme Power Conversion J90 2kVA and 3kVA UPS.
Specifications
Model: J90-EBP48 (Xtreme Power Conversion)
Nominal voltage: 48V DC; capacity 20Ah (960Wh)
Chemistry: lithium iron phosphate (LiFePO4) with built-in BMS and breaker
Form factor: 1U, 17.2 x 22.8 x 1.7 in
Compatible UPS: J90-2kLiD and J90-3kLiD, up to six packs per UPS
Communications to UPS: RS485 (RJ45) and CAN (RJ11)
Operating temperature: 0-50 °C
Rated cycle life: 3000-5000 cycles at 25 °C
Certifications: UL1973, IEC 62619; UN38.3 for transport
Published runtime: one pack takes a J90-2kLiD at 1800W from about 6 to about 30 minutes
Application notes
Add J90-EBP48 packs when a 1U J90 has to carry a closet or edge rack longer than its internal battery allows. Each pack adds one rack unit and talks to the UPS over its own BMS link, so runtime scales without VRLA cabinets.
Source: Xtreme Power Conversion published datasheets and product pages. Runtimes are manufacturer estimates and vary with battery age, temperature and load.
Helpful guides: How to Size a UPS · When to Replace a UPS Battery · Common UPS Failure Points and Preventive Maintenance · UPS and battery service
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