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Rectangular 48 V VRLA battery pack, 3.4 by 17 by 26.7 inches, 131 lbs, two modules

APC

APC SUM48RMXLBP2U 48V 1300 VA UPS replacement battery

SKU CH-ETVZ-5AT9Z MPN SUM48RMXLBP2U

A 48 V VRLA battery pack with two hot-swappable cartridges delivering 1300 VA runtime for compatible Smart-UPS XL models

  • TypeBattery
  • CompatibilityBattery Volt-Amp-Hour Capacity: 1300
  • SpecificationsBattery Type: VRLA Battery mounting: Enclosed battery cartri
  • Dimensions3.4" x 17" x 26.7"
  • Weight131.00 lbs.
  • Hot-swappable batteries let you replace modules without powering down
  • 48 V DC output matches compatible Smart-UPS XL units
  • 1300 VA capacity extends runtime for critical loads
  • Two included battery modules simplify installation
  • VRLA chemistry provides 3–5 year expected service life

Product identity

The APC SUM48RMXLBP2U is a 48 V DC extended-run battery pack designed for Smart-UPS XL modular systems. It supplies 1300 VA capacity through two user-replaceable VRLA cartridges in a rack/tower convertible enclosure.

Capacity and headroom

Two hot-swappable modules deliver 1300 VA of backup power for compatible 1500 VA and 3000 VA Smart-UPS XL units. Runtime scales with load; the pack will exhaust its reserve faster under heavier draws and cannot support units outside the listed SUM series.

Thermals noise and power

Valve-regulated lead-acid cells operate without active cooling, so the pack adds no fan noise to the rack. The sealed cartridges weigh 131 lb and measure 3.4" high by 17" wide by 26.7" deep, requiring adequate rack space and structural support for safe installation.

Highlights

  • Hot-swappable batteries let you replace modules without powering down
  • 48 V DC output matches compatible Smart-UPS XL units
  • 1300 VA capacity extends runtime for critical loads
  • Two included battery modules simplify installation
  • VRLA chemistry provides 3–5 year expected service life

Specifications

BrandAPC
ModelSUM48RMXLBP2U
TypeBattery
CompatibilityBattery Volt-Amp-Hour Capacity: 1300
SpecificationsBattery Type: VRLA
Battery mounting: Enclosed battery cartridge
Expected Battery Life (years): 3 - 5
Included Battery Modules: 2
RBC Quantity: 2
Replacement battery cartridge note: Also GS Portalac Vendor
Battery blocks per string: 48
Dimensions3.4" x 17" x 26.7"
Weight131.00 lbs.
Shipping weight68.95 kg
Package size1016 × 635 × 254 mm

Questions about this item

Will this 48 V pack work with my existing SUM3000RMXL2U Smart-UPS?

Yes, the pack is listed as compatible with the SUM3000RMXL2U and SUM3000RMXLI2U models.

How can I confirm the pack is delivering its rated 1300 VA-h capacity after installation?

The UPS management interface will report the extended runtime and show the external battery pack as connected and charging.

Does the shipment include the two RBC cartridges and rails, or must I order them separately?

The box contains the 48 V extended run battery pack with two RBC modules already installed, plus an installation guide and user manual.

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