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

PowerWarehouse

PowerWarehouse 2XRBC2SLA218 UPS replacement battery (2 pack)

SKU CH-ZN4B-CG5RV

Two 12 V lead-acid cartridges replace the APC Back-UPS Pro BP420 battery pack

  • CompatibilityFits: APC Back UPS Pro BP420
  • 12 V lead-acid chemistry delivers reliable backup power
  • Two-pack design keeps a spare cartridge ready for quick swaps
  • Built to match APC Back-UPS Pro BP420 specifications
  • One-year replacement warranty protects the investment

12 V lead-acid cartridge for APC Back-UPS Pro BP420

This two-pack supplies 12 volt sealed lead-acid cartridges built to fit the APC Back-UPS Pro BP420. They are sold new and guaranteed 100 per cent compatible with the original equipment. The set suits anyone whose UPS needs a direct battery refresh without adapter cables or firmware changes.

Capacity and runtime limits of the twin pack

Each cartridge delivers the rated 12 volts for the BP420 chassis, so the pair restores factory runtime for typical desktop or networking loads. Extended outages or additional expansion packs will exceed the designed capacity, and the units cannot support higher-voltage or lithium-based configurations.

Highlights

  • 12 V lead-acid chemistry delivers reliable backup power
  • Two-pack design keeps a spare cartridge ready for quick swaps
  • Built to match APC Back-UPS Pro BP420 specifications
  • One-year replacement warranty protects the investment

Specifications

BrandPowerWarehouse
Model2XRBC2SLA218
CompatibilityFits: APC Back UPS Pro BP420

Questions about this item

Will the 2XRBC2SLA218 pack fit my existing APC Back UPS Pro BP420 unit?

Yes, the 2XRBC2SLA218 cartridge is guaranteed 100% compatible with the APC Back UPS Pro BP420, so it slots straight into the original battery compartment.

How can I confirm the 12V lead-acid batteries are working after installation?

After fitting the 2XRBC2SLA218 pack, run a self-test from the UPS front panel; a passed test and normal runtime during a brief power pull show the cartridges are operating as intended.

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