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Four 6V12A sealed lead-acid batteries in a kit for Liebert UD900R UPS

RefurbUPS

RefurbUPS Liebert UD900R UPS Replacement Battery Kit 4x 6V12A

SKU CH-8Z48-7WMBB

Kit contains four 6 V 12 Ah sealed lead-acid batteries for the Liebert UPStation 900 UPS

  • TypeKit/Package
  • Weight20
  • Four 6 V 12 Ah batteries restore full runtime
  • Kit matches Liebert UD900R specifications exactly
  • Factory-fresh cells deliver reliable backup power
  • Twenty kilogram weight confirms high-capacity lead-acid build
  • Includes step-by-step installation instructions for quick replacement

Compatible Replacement Kit for Liebert UD900R

This kit provides four 6V12A sealed lead-acid batteries designed as a direct replacement for the Liebert UD900R uninterruptible power supply. It targets administrators who need to restore runtime to an existing unit without sourcing cells individually. The package arrives ready for installation with factory-fresh cells.

Pre-Wired Cartridge Design

The four batteries are assembled into a cartridge format that matches the original equipment layout, so no soldering or custom wiring is required during the swap. Each cell is a high-rate discharge type built to deliver the surge current a UPS demands during a power event. Comprehensive installation instructions are included to guide the replacement process step by step.

SLA Chemistry Constraints

Sealed lead-acid chemistry limits usable life to a finite number of discharge cycles and calendar years, so the kit will require another replacement on a predictable schedule. The 12 Ah rating per cell defines the total energy reserve available to the 900 VA unit, fixing maximum runtime for a given load. Capacity will gradually decline with age and temperature exposure regardless of use patterns.

Highlights

  • Four 6 V 12 Ah batteries restore full runtime
  • Kit matches Liebert UD900R specifications exactly
  • Factory-fresh cells deliver reliable backup power
  • Twenty kilogram weight confirms high-capacity lead-acid build
  • Includes step-by-step installation instructions for quick replacement

Specifications

BrandLiebert UPStation
SeriesLiebert UPStation Batteries
TypeKit/Package
Weight20

Questions about this item

What type of battery cells are inside the UD900R replacement kit?

The kit contains four sealed lead-acid cells rated at 6 V and 12 Ah each, designed for high-rate discharge in the UpStation 900 UPS.

How much does the complete four-battery kit weigh?

The packaged kit weighs 20 lb, so plan for that mass when lifting it into the battery compartment.

What is the first step when installing these batteries in the UD900R?

Power down the UPS and disconnect it from the mains before opening the battery door; skipping this step leaves live voltage exposed.

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