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Three sealed lead-acid batteries in a cartridge, 7.60 by 13.10 by 3.20 inches

CyberPower

CyberPower RB1290X3L 12V 9Ah 3-pack UPS replacement battery

SKU CH-N5J3-F831P MPN RB1290X3L

Three sealed lead-acid 12V 9Ah batteries in a pre-assembled cartridge restore runtime to compatible CyberPower UPS units

  • TypeBattery
  • CompatibilityOL1000RTXL2U, OL1500RTXL2U, BP36V60ART2U (Also requires the
  • SpecificationsBattery Type: Sealed Lead-Acid Battery Size: 12V/9Ah User Re
  • FeaturesThe RB1290X3L UPS Replacement Battery Cartridge restores lif
  • Dimensions7.60" x 13.10" x 3.20"
  • Weight18.00 lbs.
  • Restores UPS runtime with certified 12V/9Ah sealed lead-acid cells
  • Three pre-assembled cartridges install quickly without tools
  • Leak-proof design eliminates fluid maintenance for safer operation
  • Compatible with OL1000RTXL2U, OL1500RTXL2U and BP36V60ART2U units
  • Reusable packaging simplifies responsible recycling of expired batteries

Restores CyberPower UPS Runtime

This three-pack of 12V 9Ah sealed lead-acid batteries replaces depleted cells in compatible CyberPower UPS units. The pre-assembled cartridge is user-replaceable and arrives in reusable packaging for recycling the old batteries. Each unit is certified to meet or exceed the original manufacturer specifications. No fluid maintenance is ever required.

Suits OL1000RTXL2U and OL1500RTXL2U Owners

Buyers with those rackmount models can install the cartridge directly. The BP36V60ART2U extended battery module also works but requires the separate RB1290X3R pack. This set does not fit other UPS families or voltages. Users needing higher capacity or different form factors should look elsewhere.

Fits 7.60 by 13.10 by 3.20 Inch Bays

The cartridge slides into the existing battery compartment without tools and weighs 18.00 lbs for the triple pack. Reusable shipping materials simplify proper disposal of the spent units. An eighteen-month warranty covers the replacement cells. Installation instructions and recycling information are included in the box.

Highlights

  • Restores UPS runtime with certified 12V/9Ah sealed lead-acid cells
  • Three pre-assembled cartridges install quickly without tools
  • Leak-proof design eliminates fluid maintenance for safer operation
  • Compatible with OL1000RTXL2U, OL1500RTXL2U and BP36V60ART2U units
  • Reusable packaging simplifies responsible recycling of expired batteries

Specifications

BrandCyberPower
ModelRB1290X3L
TypeBattery
CompatibilityOL1000RTXL2U,
OL1500RTXL2U,
BP36V60ART2U (Also requires the RB1290X3R)
SpecificationsBattery Type: Sealed Lead-Acid
Battery Size: 12V/9Ah
User Replaceable: Yes
Number of Batteries: 3
FeaturesThe RB1290X3L UPS Replacement Battery Cartridge restores life to CyberPower UPS systems that have weak or completely depleted internal batteries. The RB1290X3L contains one 12V/9AH battery, certified to meet or exceed original manufacturer specifications. This leak-proof, sealed lead-acid battery never requires replacement fluid. The pre-assembled cartridge installs easily in your CyberPower UPS system and is shipped with reusable packaging for delivering expired batteries to a suitable recycling center.
Dimensions7.60" x 13.10" x 3.20"
Weight18.00 lbs.
Shipping weight8.62 kg
Package size384 × 244 × 132 mm

Questions about this item

Which CyberPower UPS models accept the RB1290X3L cartridge?

The cartridge fits the OL1000RTXL2U and OL1500RTXL2U directly; the BP36V60ART2U also works when paired with the RB1290X3R kit.

Can I mix the new 12V 9Ah batteries with older cells still inside the UPS?

No — replace every cell at once; mixing fresh and aged sealed lead-acid units shortens runtime and can damage the charger.

How do I confirm the replacement cartridge is working after installation?

Run a self-test from the UPS front panel; a passed test and normal runtime on battery indicate the 12V 9Ah pack is functioning.

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