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Sealed lead-acid battery cartridge with four 12V 9Ah cells in black plastic housing

CyberPower

CyberPower RB1290X4J UPS Battery Cartridge 4×12V 9Ah

SKU CH-A948-8QVHG MPN RB1290X4J

Pre-assembled cartridge with four 12 V 9 Ah sealed lead-acid cells restores runtime to compatible CyberPower UPS units

  • Restores UPS runtime with four 12V 9Ah batteries
  • Leak-proof sealed lead-acid design needs no fluid maintenance
  • Pre-assembled cartridge fits straight into compatible CyberPower UPS units
  • Ships in reusable packaging for easy battery recycling
  • Compatible with PR1500, PR2000, PR2200, PR3000 and BP48V series models

Replacement Cartridge for CyberPower UPS

The CyberPower RB1290X4J is a pre-assembled replacement battery cartridge containing four sealed lead-acid batteries rated at 12V and 9Ah each. It restores backup runtime to compatible CyberPower UPS units when internal batteries become weak or depleted. The leak-proof design requires no fluid maintenance and installs without tools. Packaging is reusable for returning expired batteries to a recycling centre.

Suits owners of listed PR and BP models

This cartridge fits the specific UPS models listed in the compatibility data, including PR1500RT2U, PR2000RT2U, PR2200RT2U, PR3000RT2U and BP48VP2U02 series units. It is not for users whose UPS model is absent from that list or who need a different voltage or battery count. Buyers with non-CyberPower units or different form-factor requirements should look elsewhere.

Four 12V 9Ah batteries deliver 48V total

The cartridge combines four 12V 9Ah blocks in series to provide the 48V DC bus voltage required by the compatible UPS systems. This exact voltage and capacity match is the single specification that determines whether the part will function correctly in your unit. Verify your UPS model against the supported list before purchase.

How it compares

Measured against everything we stock in Uninterruptible Power Supplies (UPS), at today’s prices. Recalculated every night.

Price $190.99
Cheaper than about 81% of the 1,153 comparable items (median $948.99).

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Specifications

Product
Brand nameCyberPower
Size & build
Shipping weight11.77 kg
Package size470 × 368 × 152 mm

Questions about this item

Does the RB1290X4J cartridge fit my PR2000RT2U rack-mount UPS?

Yes, the cartridge is listed as compatible with the PR2000RT2U and other PR1500, PR2200 and PR3000 rack-mount models.

What is the wrong way to install the pre-assembled cartridge?

Forcing the cartridge in without aligning the connector first can bend the pins; slide it straight in until the latch clicks.

When will the four 12 V 9 Ah sealed lead-acid batteries need replacing again?

Expect three to five years of service; the cartridge ships with recycling packaging for the expired cells.

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