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Two black rectangular 6V 4.5A SLA batteries in a kit

RefurbUPS

RefurbUPS APC RBC1 Compatible UPS Replacement Battery Kit 4.5A

SKU CH-1FJ4-STKNY

Compatible replacement kit containing two 6V 4.5A sealed lead-acid batteries for APC UPS units

  • Product typeKit/Package
  • Product weight6
  • Two 6 V 4.5 A batteries deliver reliable backup power
  • Factory-fresh cells ensure consistent performance from day one
  • Kit includes step-by-step installation instructions for easy replacement
  • High-rate discharge design supports demanding UPS loads
  • APC RBC1 compatibility guarantees correct fit and function

Direct RBC1 Replacement

This kit provides two 6V 4.5A sealed lead-acid batteries designed as a direct replacement for APC RBC1 cartridges. It restores runtime to compatible UPS units without modification. The pack arrives factory fresh and includes installation instructions for immediate deployment.

Pre-Wired Kit Format

Supplied as a pre-assembled kit, the batteries are ready to install without soldering or custom wiring. The package weighs approximately 6 units and fits the existing battery compartment. No additional connectors or mounting hardware are required for the swap.

Maintenance-Free SLA Chemistry

The sealed lead-acid cells are maintenance free and rated for high-rate discharge during power events. They operate quietly with no moving parts and draw no power while on standby. Normal use involves periodic self-test cycles managed by the UPS electronics.

How it compares

Measured against everything we stock in UPS Replacement Batteries, at today’s prices. Recalculated every night.

Price $13.99
Cheaper than about 88% of the 3,915 comparable items (median $39.99).

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Specifications

Product
Brand nameAPC
Product lineAPC
Product typeKit/Package

Questions about this item

Does the APC RBC1 compatible kit use a standard battery connector interface?

The kit includes two 6V 4.5A sealed lead-acid batteries designed to match the original APC RBC1 cartridge connector for direct replacement.

What are the physical dimensions needed to fit this battery kit inside the UPS?

Each 6V 4.5A battery follows the standard form factor for the RBC1 cartridge, allowing the pair to slide into the existing UPS battery compartment.

How do I install the replacement batteries, and what step is commonly missed?

Disconnect the UPS from power, open the battery bay, swap the old cartridge with the new kit, and ensure the connector is fully seated before closing the cover.

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