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Four sealed lead-acid batteries in a cardboard box

RefurbUPS

RefurbUPS RB1290X4B 12V 9Ah 4-pack UPS replacement battery

SKU CH-MC7T-4J74Q

A kit of four 12 V 9 Ah sealed lead-acid batteries compatible with CyberPower RB1290 UPS models

  • TypeKit/Package
  • Weight28
  • Four high-rate 12V 9Ah SLA batteries included
  • 1290 compatible kit fits CyberPower UPS models
  • Factory-fresh cells deliver reliable backup power
  • Step-by-step installation guide simplifies replacement
  • 28-unit weight reflects robust sealed-lead construction

12 V 9 Ah UPS battery kit

This pack supplies four 12 V 9 Ah sealed lead-acid batteries designed to refresh compatible CyberPower UPS units. It suits administrators who need factory-fresh cells to restore runtime on existing power-protection hardware.

Drop-in cartridge replacement

Each battery matches the original cartridge form factor so installation requires only basic hand tools and the included step-by-step guide. The most common issue is forgetting to reconnect the series wiring harness in the correct order, which prevents the UPS from recognising the new pack.

Verify UPS model compatibility first

Confirm that your UPS specifies the RB1290X4B cartridge before ordering, because other CyberPower series use different cell counts or terminal layouts. Also check that the battery bay can accept the 28 kg combined weight of the four cells without additional reinforcement.

Highlights

  • Four high-rate 12V 9Ah SLA batteries included
  • 1290 compatible kit fits CyberPower UPS models
  • Factory-fresh cells deliver reliable backup power
  • Step-by-step installation guide simplifies replacement
  • 28-unit weight reflects robust sealed-lead construction

Specifications

BrandCyberPower
SeriesCyberPower RB Replacement Batteries
TypeKit/Package
Weight28

Questions about this item

How can I verify the four 12 V 9 Ah batteries are performing correctly after installation?

Run a self-test from the UPS front panel or management software; the unit should report normal voltage and hold the rated load for the expected runtime.

What comes in the box and what must be sourced separately?

The kit includes four factory-fresh 12 V 9 Ah SLA batteries and comprehensive installation instructions; no extra cables or hardware are required.

Which capacity should I choose for a CyberPower RB1290X4B compatible UPS?

Select the 12 V 9 Ah four-pack — it matches the original cartridge specification exactly.

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