CYBERPOWER 

CYBERPOWER RB1290X4J REPLACEMENT BATTERY

Mfg Part Number:  RB1290X4J  
Image may not reflect the actual item.
Price: $234.66 + Free Shipping
Quantity:
In Stock: 21
Last Updated: Feb 09, 2026
No Sales Tax except these states
, PO and Wire.

The RB1290X4J UPS Replacement Battery Cartridge restores life to CyberPower UPS systems that have weak or completely depleted internal batteries. The RB1290X4J contains four 12V/9Ah batteries, 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 into your CyberPower UPS system and is shipped with reusable packaging for delivering expired batteries to a suitable recycling center. The RB1290X4J comes with instructions, recycling information, and an eighteen-month warranty.

UPS Compatibility
PR1500RT2U, PR1500RT2UN, PR1500RTXL2U, PR1500RTXL2UTAA, PR1500RTXL2UN, PR2000RT2U, PR2000RT2UN, PR2000RTXL2U, PR2000RTXL2UTAA, PR2000RTXL2UN, PR2200RT2U, PR2200RT2UN, PR2200RTXL2U, PR2200RTXL2UN, PR3000RT2U, PR3000RT2UN, PR3000RTXL2U, PR3000RTXL2UN, BP48VP2U02, BP48VP2U02TAA, PR1500RT2UC, PR1500RT2UCN, PR2000RT2UC, PR2000RT2UCN, PR2200RT2UC, PR2200RT2UCN, PR3000RT2UC, PR3000RT2UCN, PR1500RTXL2UC, PR1500RTXL2UCN, PR2000RTXL2UC, PR2000RTXL2UCN, PR2200RTXL2UC, PR2200RTXL2UCN, PR3000RTXL2UC, PR3000RTXL2UCN

Main Specification
General Information
Manufacturer CyberPower Systems, Inc
Manufacturer Part Number RB1290X4J
Manufacturer Website Address https://www.cyberpowersystems.com/
Brand Name CyberPower
Product Series UPS Replacement Batteries
Product Model RB1290X4J
Product Name RB1290X4J Replacement Battery Cartridge
Product Type Battery Kit
Technical Information
Battery Characteristics Leak Proof/User Replaceable
Battery Chemistry Lead Acid
Battery Capacity 9000 mAh
Output Voltage 12 V DC
Physical Characteristics
Height 2.6"
Width 8.2"
Depth 12.4"
Weight (Approximate) 24 lb
Miscellaneous
Package Contents
  • RB1290X4J Battery Kit
  • Installation Guide
  • Recycling Information
Additional Information
  • Battery Quantity : 4
  • Battery Size : 12 V / 9 Ah
  • Battery Type : Sealed Lead-Acid Battery
  • User Replaceable Battery : Yes
  • Physical Dimensions - (WxHxD) (cm) : 20.83 x 6.6 x 31.5 (cm)
  • Physical Dimensions - (WxHxD) (in) : 8.2 x 2.6 x 12.4 (in)
  • Physical Dimensions - (WxHxD) (mm) : 208 x 66 x 315 (mm)
  • Weight (kg) : 10.89
  • Weight (lb) : 24.0
  • Shipping Dimensions - (WxHxD) (cm) : 36.58 x 16.51 x 48.01 (cm)
  • Shipping - Dimensions (WxHxD, in) : 14.4 x 6.5 x 18.9 (in)
  • Shipping - Dimensions (WxHxD, mm) : 365.76 x 165.1 x 480.06 (mm)
  • Shipping - Weight (kg) : 11.88
  • Shipping - Weight (lb) : 26.2
  • USB Charge Port : No
  • Material : Plastic
  • Package Includes : Battery Kit and Installation Guide
  • Operating Relative Humidity : 0 - 90 % (non-condensing)
  • Operating Temperature : 32 - 104 °F (0 - 40 °C)
  • Models : PR1500RT2U, PR1500RTXL2U, PR2000RT2U, PR2000RTXL2U, PR2200RT2U, PR2200RTXL2U, PR3000RT2U, PR3000RTXL2U, PR1500RT2UN, PR1500RTXL2UN, PR2000RT2UN, PR2000RTXL2UN, PR2200RT2UN, PR2200RTXL2UN, PR3000RT2UN, PR3000RTXL2UN, PR1500RT2UC, PR1500RT2UCN, PR2000RT2UC, PR2000RT2UCN, PR2200RT2UC, PR2200RT2UCN, PR3000RT2UC, PR3000RT2UCN, PR1500RTXL2UC, PR1500RTXL2UCN, PR2000RTXL2UC, PR2000RTXL2UCN, PR2200RTXL2UC, PR2200RTXL2UCN, PR3000RTXL2UC, PR3000RTXL2UCN
  • UPS Models : PR1500RT2U, PR1500RTXL2U, PR2000RT2U, PR2000RTXL2U, PR2200RT2U, PR2200RTXL2U, PR3000RT2U, PR3000RTXL2U, PR1500RT2UN, PR1500RTXL2UN, PR2000RT2UN, PR2000RTXL2UN, PR2200RT2UN, PR2200RTXL2UN, PR3000RT2UN, PR3000RTXL2UN, PR1500RT2UC, PR1500RT2UCN, PR2000RT2UC, PR2000RT2UCN, PR2200RT2UC, PR2200RT2UCN, PR3000RT2UC, PR3000RT2UCN, PR1500RTXL2UC, PR1500RTXL2UCN, PR2000RTXL2UC, PR2000RTXL2UCN, PR2200RTXL2UC, PR2200RTXL2UCN, PR3000RTXL2UC, PR3000RTXL2UCN
  • Product Warranty : 18 Month Limited Warranty
    		•
    Compatibility CyberPower UPS Systems:
    • PR1500RT2U
    • PR1500RT2UN
    • PR1500RTXL2U
    • PR1500RTXL2UTAA
    • PR1500RTXL2UN
    • PR2000RT2U
    • PR2000RT2UN
    • PR2000RTXL2U
    • PR2000RTXL2UTAA
    • PR2000RTXL2UN
    • PR2200RT2U
    • PR2200RT2UN
    • PR2200RTXL2U
    • PR2200RTXL2UN
    • PR3000RT2U
    • PR3000RT2UN
    • PR3000RTXL2U
    • PR3000RTXL2UN
    • BP48VP2U02
    • BP48VP2U02TAA
    Certifications & Standards

    Country of Origin China
    Warranty
    Limited Warranty 18 Month
    product information
    WARNING:: The plastic used in cable products can expose you to lead and lead components, chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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