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Factory fresh 12 V 7 A battery cartridge for APC Back-UPS 420

RefurbUPS

RefurbUPS APC Back-UPS 420 BK420 ups replacement battery

SKU CH-R71X-54XDV

Compatible 12 V 7 Ah battery cartridge for APC Back-UPS 420 models

  • TypeBattery
  • Weight6
  • Factory-fresh battery restores UPS runtime
  • Compatible with APC Back-UPS 420 and BK420 models
  • Single 12 V 7 Ah cell replaces APC RBC2 cartridge
  • New condition ensures reliable power protection from day one

Compatible Replacement Battery Kit

This kit provides a factory-fresh 12V7A battery cartridge designed as a direct replacement for the APC Back-UPS 420 BK420. It matches the APC RBC2 specification so the UPS can resume its backup role without modification. The single-unit pack keeps installation simple for home or small-office users.

Suitable for owners of the BK420 model needing

Buyers who need a different voltage, capacity or form factor should look elsewhere, as this cartridge only fits the specified APC unit. It also does not serve installations that require multiple batteries or an external battery module.

Highlights

  • Factory-fresh battery restores UPS runtime
  • Compatible with APC Back-UPS 420 and BK420 models
  • Single 12 V 7 Ah cell replaces APC RBC2 cartridge
  • New condition ensures reliable power protection from day one

Specifications

TypeBattery
Weight6

Questions about this item

What voltage and capacity must the UPS support for this 12V7A battery to work?

The replacement cartridge contains one 12 V 7 Ah sealed lead-acid cell, so the UPS must accept a single 12 V block of that capacity.

Will this cartridge fit the original APC Back-UPS 420 BK420 without modification?

Yes, it is built as an APC RBC2 compatible unit and matches the form factor used in the Back-UPS 420 BK420.

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