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Three sealed 12V9A lead-acid batteries in a kit

RefurbUPS

RefurbUPS RB1290X3PS UPS Replacement Battery Kit 12V9A (3)

SKU CH-3NJ4-4S6GH

Kit contains three 12V9A sealed lead-acid batteries for UPS replacement

  • TypeKit/Package
  • Weight21
  • Three 12 V 9 Ah batteries deliver extended runtime
  • Kit replaces CyberPower RB1290X3PS cartridge without modification
  • Factory-fresh sealed lead-acid cells ensure reliable backup
  • 21 kg total weight simplifies single-person installation
  • Step-by-step guide included for quick UPS battery swap

CyberPower RB1290X3PS Compatible Kit

This kit supplies three 12 V 9 A sealed lead-acid batteries built as direct replacements for the CyberPower RB1290X3PS cartridge. Each unit is factory fresh and rated for high-rate discharge in UPS applications. The package includes comprehensive installation instructions so the swap can be completed without specialised tools. Weight is 21.

Suits owners of compatible CyberPower UPS units

Buyers needing a different voltage, capacity or quantity of cells should look elsewhere. The kit is designed only for systems that accept the exact 12 V 9 A form factor and will not fit models requiring alternative battery dimensions or terminal layouts. No other chemistries or configurations are supported by this package.

Three 12 V 9 A batteries per kit

The deciding specification is the 12 V 9 A rating across three matched cells, which determines whether the kit matches the original cartridge. If the UPS calls for this exact voltage and capacity combination, the kit is the correct part; otherwise a different replacement is required.

Highlights

  • Three 12 V 9 Ah batteries deliver extended runtime
  • Kit replaces CyberPower RB1290X3PS cartridge without modification
  • Factory-fresh sealed lead-acid cells ensure reliable backup
  • 21 kg total weight simplifies single-person installation
  • Step-by-step guide included for quick UPS battery swap

Specifications

BrandCyberPower
SeriesCyberPower RB Replacement Batteries
TypeKit/Package
Weight21

Questions about this item

Will the three 12V9A batteries in this kit replace the original pack in my older CyberPower UPS without wiring changes?

Yes, the kit contains three factory-fresh 12V9A SLA cells that match the original cartridge specifications, so they fit the existing battery tray and connect to the same terminals.

How can I verify the kit is delivering full runtime after I install the three batteries?

Run a self-test from the UPS front panel or management software; a successful test and the expected runtime shown on the display confirm the batteries are working as intended.

Does the box include only the three 12V9A batteries or are mounting brackets and cables also supplied?

The package provides the three high-rate discharge 12V9A batteries plus comprehensive installation instructions; mounting hardware and cables are reused from the original cartridge.

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