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Two new 12 V lead-acid battery cartridges labelled 43 in a sealed pack

PowerWarehouse

PowerWarehouse APC SUA3000RMUS UPS replacement battery 2XRBC43SLA4331 12V 43 (2 pack)

SKU CH-9MMP-KEFF9

12 V lead-acid cartridge fits APC SUA3000RMUS UPS, supplied as a matched pair

  • CompatibilityFits: APC SUA3000RMUS
  • Direct replacement for APC SUA3000RMUS UPS
  • Two 12 V 43 Ah batteries included
  • 100 % compatibility guaranteed by manufacturer
  • One-year replacement warranty on each unit

Direct-fit UPS battery cartridge

This 2-pack replaces the original cartridge #43 in the APC SUA3000RMUS uninterruptible power supply. Each 12 V 43 Ah lead-acid module is built to match the factory specifications so the UPS can restore its rated runtime immediately after installation. The set is designed for server rooms and network closets that depend on continuous power protection.

Sealed lead-acid cells run without ventilation

The maintenance-free design produces no gas during normal float charging, so no extra cooling or airflow is required beyond the UPS enclosure. Internal resistance stays low, keeping heat output minimal while the unit supplies backup power. Power draw during recharge follows the UPS charger profile, adding no unexpected load to the circuit.

Highlights

  • Direct replacement for APC SUA3000RMUS UPS
  • Two 12 V 43 Ah batteries included
  • 100 % compatibility guaranteed by manufacturer
  • One-year replacement warranty on each unit

Specifications

BrandPowerWarehouse
Model2XRBC43SLA4331
CompatibilityFits: APC SUA3000RMUS

Questions about this item

How do I install the 12V 4331 cartridge into the SUA3000RMUS, and which step is most often missed?

Power off the UPS, remove the front panel, slide the cartridge in until it clicks, then reconnect the internal battery connector — the step most often missed is re-seating that connector firmly.

What maintenance will the 2XRBC43SLA4331 pack need after installation?

The sealed 12V lead-acid cells require no watering; plan to replace the pair after 3–5 years or when the UPS reports a battery fault.

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