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Four sealed 12V9A batteries in a cardboard box

RefurbUPS

RefurbUPS RB1290X4C UPS Replacement Battery Kit 12V9A 4 Pack

SKU CH-6Z4M-3PYQE

Kit of four 12V 9Ah sealed lead-acid batteries for UPS backup power, weighing 28 units total

  • TypeKit/Package
  • Weight28
  • Four 12 V 9 Ah SLA batteries deliver reliable backup power
  • Kit includes four matched cells for balanced performance
  • Factory-fresh stock ensures full capacity on arrival
  • Detailed installation guide simplifies the replacement process
  • Compatible with CyberPower RB1290X4C UPS models for direct fit

Compatible replacement kit

This RefurbUPS kit provides four 12V9A sealed lead-acid batteries built to match the CyberPower RB1290X4C cartridge. It is intended for administrators who need to restore runtime on compatible UPS units without sourcing cells individually.

Maintenance characteristics

Each battery uses high-rate discharge chemistry suited to UPS duty cycles. The pack weighs 28 units and arrives factory fresh, so self-discharge during storage is minimal and no special cooling is required during normal float operation.

Installation fit

Comprehensive replacement instructions are included, allowing a single technician to swap all four cells in one service window. The kit eliminates the need to hunt for matching voltage and capacity, freeing rack space that would otherwise hold spare loose batteries.

Highlights

  • Four 12 V 9 Ah SLA batteries deliver reliable backup power
  • Kit includes four matched cells for balanced performance
  • Factory-fresh stock ensures full capacity on arrival
  • Detailed installation guide simplifies the replacement process
  • Compatible with CyberPower RB1290X4C UPS models for direct fit

Specifications

BrandCyberPower
SeriesCyberPower RB Replacement Batteries
TypeKit/Package
Weight28

Questions about this item

How do I install the four 12V9A batteries in the RB1290X4C kit, and what step do people often miss?

Open the UPS battery compartment, disconnect the old set, connect the new batteries in the same series order, then secure the cover; the step often missed is tightening the terminal bolts to the torque shown in the included instructions.

What maintenance will the RB1290X4C kit need later?

Run the UPS self-test monthly, keep the unit in a cool, dry environment, and inspect terminals for corrosion during each test; replace the full four-battery set when runtime drops below your critical load requirement.

What limit appears first during a long power outage with the RB1290X4C batteries?

The 12V9A capacity determines runtime; under sustained load the voltage will sag to the UPS low-battery cutoff first, ending usable backup time.

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