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Black and silver 2U rack-mount battery module, rectangular metal chassis with front handle and ventilation slots

Eaton

Eaton 9PXEBM48RT 48V UPS Replacement Battery Module

SKU CH-4CAY-JQCZC MPN 9PXEBM48RT

A 48 V lead-acid extended battery module adds up to four units to a 9PX UPS for maximum runtime in a 2U rack-mountable form weighing 59.52 lb

  • Product typeBattery Backup & UPS
  • Scalable runtime by adding up to four modules
  • Lead-acid chemistry delivers efficient backup performance
  • 2U rack-mount form factor simplifies installation
  • 52 lb weight reflects substantial battery capacity
  • 48 V configuration matches compatible 9PX UPS systems

Eaton 48V Extended Battery Module

This 48V extended battery module is designed for Eaton 9PX UPS systems. It adds scalable backup runtime for rack and stand-alone installations in critical environments. The lead-acid battery chemistry delivers reliable performance for servers and network equipment. Each unit is sold individually for flexible deployment.

Up to Four Modules for Maximum Runtime

You can connect up to four of these modules to a compatible 9PX UPS to extend runtime significantly. The jump is worthwhile when existing internal batteries no longer meet required autonomy during outages. Installation is simplified by the 2U rack-mountable form factor that fits standard enclosures. This module does not replace the UPS itself; it only supplements battery capacity.

59.52 lb Lead-Acid Capacity

The module weighs approximately 59.52 lb and uses lead-acid cells to provide efficient energy storage. It comfortably handles extended runtime demands for critical loads in harsh electrical conditions. Runtime scales linearly with each added module until the four-module limit is reached. Beyond that limit, no further battery expansion is supported by this product line.

How it compares

Measured against everything we stock in UPS Replacement Batteries, at today’s prices. Recalculated every night.

Price $698.99
Pricier than about 91% of the 3,915 comparable items (median $39.99).

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Specifications

Product
Brand nameEATON
Product typeBattery Backup & UPS
Size & build
Shipping weight32.48 kg
Package size584 × 559 × 229 mm

Questions about this item

What rack height does the 2U form factor of the 9PXEBM48RT require?

The module occupies 2U of vertical rack space, which is approximately 3.5 inches of height in a standard rack enclosure.

Which cable connection is often overlooked when adding this module to a 9PX UPS?

The DC battery cable between the UPS and the module must be firmly seated; a loose connector is the most common reason the extra runtime is not recognised.

When should the lead-acid batteries inside the 48V module be replaced?

Plan on replacing the internal batteries every three to five years, depending on temperature and discharge cycles, to maintain the rated runtime.

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