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RefurbUPS replacement battery cartridge for APC Back-UPS Pro 420

RefurbUPS

RefurbUPS APC Back-UPS Pro 420 BP420SUS ups replacement battery

SKU CH-9ND6-XWQ41

A 12 V replacement battery cartridge for APC Back-UPS Pro 420 models

  • TypeBattery
  • Weight6
  • Factory-fresh cells deliver reliable backup power
  • 12 V 7 Ah capacity matches original APC RBC2 specifications
  • Compatible with Back-UPS Pro 420 models for direct replacement
  • Single-cartridge design enables quick tool-free installation

APC Back-UPS Pro 420 compatible battery

This replacement battery kit suits owners of the APC Back-UPS Pro 420 UPS who need to restore runtime after the original cells have aged. It delivers a factory-fresh 12 V 7 Ah unit that fits the existing compartment without modification.

Replaces a worn-out RBC2 cartridge

The upgrade is worth it when the UPS reports a battery fault or runtime has dropped below useful levels. It is not for users who need extended runtime beyond the original specification or who require a higher-capacity pack for longer outages.

Highlights

  • Factory-fresh cells deliver reliable backup power
  • 12 V 7 Ah capacity matches original APC RBC2 specifications
  • Compatible with Back-UPS Pro 420 models for direct replacement
  • Single-cartridge design enables quick tool-free installation

Specifications

TypeBattery
Weight6

Questions about this item

What battery voltage and capacity does the BP420SUS replacement cartridge use?

The cartridge contains one 12 V 7 Ah sealed lead-acid battery.

How is the battery kit installed in the Back-UPS Pro 420, and what step is often missed?

Open the UPS battery door, disconnect the old cartridge, connect the new one observing the polarity markings, then close the door and let the UPS charge for at least 8 hours before relying on backup runtime.

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