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Two black rectangular 12V lead-acid battery cartridges side by side

PowerWarehouse

PowerWarehouse 2XRBC12SLA125 UPS Replacement Battery 12V 125Ah 2 Pack

SKU CH-YJSF-X5BM9

Two 12 V 125 Ah lead-acid batteries replace cartridge #12 in APC DL3000RM3U units

  • CompatibilityFits: APC DL3000RM3U
  • Compatible with APC DL3000RM3U UPS
  • Two 12 V 125 Ah lead-acid batteries included
  • 100 % compatibility guaranteed with original equipment
  • One-year replacement warranty on every battery

APC DL3000RM3U Compatible Pack

This two-pack of 12V 125Ah lead-acid cartridges is built as a direct replacement for the APC DL3000RM3U uninterruptible power supply. Each battery matches the original voltage and capacity so the UPS can deliver its rated runtime without reconfiguration. Server administrators and IT teams use these packs to restore backup power after the factory cells reach end of life. The set contains two cartridges designed to be installed together.

Slide-in Cartridge Installation

Installation consists of opening the UPS front panel, disconnecting the old cartridge wiring, and sliding the new units into the same bay. The connectors are keyed to prevent reverse polarity, but the cables are short so the battery must be supported while the plugs are seated. A common issue is forgetting to tighten the terminal bolts, which can cause the UPS to report a battery fault. Another is leaving the old cartridge’s mounting bracket in place, which blocks the new units from seating fully.

Highlights

  • Compatible with APC DL3000RM3U UPS
  • Two 12 V 125 Ah lead-acid batteries included
  • 100 % compatibility guaranteed with original equipment
  • One-year replacement warranty on every battery

Specifications

BrandPowerWarehouse
Model2XRBC12SLA125
CompatibilityFits: APC DL3000RM3U

Questions about this item

How do I confirm the 12V 125Ah batteries are working correctly in my APC DL3000RM3U after installation?

The UPS self-test will pass and the runtime indicator will show the expected backup time for a 3000 VA load, confirming both 12V 125Ah cells are delivering full capacity.

Does the 2-pack include the cartridge housing and cables, or must I reuse parts from the old RBC12?

The package contains two complete 12V 125Ah battery cartridges ready to slide into the APC DL3000RM3U; no separate housing, connectors or cables need to be purchased.

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