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CB Range  |  SKU: CB129X2-10401

Batteries For Cyberpower Rb1280x2a UPS, 2 X 12v, 9ah - 108wh

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Sale price $69.99 CAD Regular price $77.76
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Please double-check that the batteries you're ordering match the ones in your unit before completing your purchase.

Please note: We only supply the batteries shown in the images. Product images of devices are shown for reference only.

UPS Battery for CyberPower RB1280X2A – 12V 9Ah Replacement Battery Pack (2 Pack)

Reliable 12V 9Ah sealed lead acid (AGM) replacement batteries designed to restore dependable backup power for your CyberPower RB1280X2A UPS. Built for stable output, maintenance-free operation, and easy installation with T2 terminals.

12V Output 9Ah Per Battery 2 Batteries Included AGM Sealed Lead Acid

Technical Specifications

BrandCB Range
SKUCB129
Battery ModelCB129
Battery TypeSealed Lead Acid (AGM)
Voltage12V
Capacity9Ah per battery
Pack Quantity2 Batteries
Terminal TypeT2
Dimensions5.95" x 2.56" x 3.7" (3.94" to top of terminal)
Gross Weight5 Kg / 11.02 lbs

Key Benefits

  • Reliable Backup Power: Each battery delivers 12V 9Ah for dependable UPS runtime during outages.
  • Maintenance-Free AGM Design: Spill-proof sealed lead acid construction for safe, hassle-free use.
  • Direct UPS Replacement: Designed to fit CyberPower RB1280X2A battery applications requiring two 12V 9Ah batteries.
  • Durable Performance: Built for strong energy retention, dependable discharge, and long-lasting service life.
  • Easy Installation: T2 terminals provide a secure fit using your existing connectors and cables.

Compatible Models

CyberPower

RB1280X2A

Designed for UPS systems using a 2-pack 12V 9Ah battery configuration with T2 terminals.

What’s Included

  • 2 x 12V 9Ah AGM batteries
  • T2 terminal configuration for secure connection
  • Compatible replacement solution for CyberPower RB1280X2A UPS systems

Warranty & Returns

  • 30-Day Return Policy
  • 1-Year Warranty

Please re-use your existing connectors and cables. Some assembly is required. Always confirm battery size, terminal type, and model compatibility before ordering.

Important Notice

  • Re-use your existing connectors and cables during installation.
  • Ensure proper handling and correct installation for best performance and service life.
  • Verify terminal type and battery dimensions before purchase to ensure precise fitment.

Why Choose This Battery Pack?

This CB Range CB129 battery pack is a practical, high-quality replacement solution for the CyberPower RB1280X2A, delivering the dependable standby performance your UPS needs to help protect critical devices and maintain uninterrupted operation when mains power fails.

Reliable Power for Uninterrupted Performance

Keep your CyberPower RB1280X2A UPS running at peak performance with this complete 2-pack 12V 9Ah AGM replacement battery kit. Built for stability, safety, and dependable runtime, it is an ideal choice for restoring backup power with confidence.

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🔋 What’s mAh All About?

mAh stands for milliamp hours—basically, how much "fuel" your battery can hold. A higher or lower mAh than your original battery? No worries! 🙌 It won’t affect charging or operation—just means your device might run a bit longer or shorter between charges. Still 100% compatible. Still 100% awesome. 💪✨

Before ordering please read

Ensure the original battery model number is mentioned in our product description and verify that your device model number is also listed in the description.

How to Look after your new lithium battery!!

See how to look after your battery if its lithium Lithium Care

Delivery and Shipping

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Technical Specifications

Batteries For Cyberpower Rb1280x2a UPS, 2 X 12v, 9ah - 108wh
Product Information
Product Model Batteries For Cyberpower Rb1280x2a UPS, 2 X 12v, 9ah - 108wh
Product Brand CB Range
Type UPS Batteries
SKU Number CB129X2-10401
Individual Battery Model CB129
Battery Replacement For Model Cyberpower Rb1280x2a UPS, 2 X 12v, 9ah - 108wh
Individual Battery Amp Hour 9Ah
Number of Batteries in Kit 2
Chemistry AGM (Sealed Lead Acid)
Gross Weight (All Batteries) 5 Kg / 11.02 Lbs
Voltage 12V
Terminal Type T2
Battery Dimensions
Height 3.7 inches / 94 mm
Height to Top of Terminal 3.94 inches / 100 mm
Length 5.95 inches / 151 mm
Width 2.56 inches / 65 mm
Replacement battery kit for compatible Cyberpower UPS systems requiring 2 x 12V 9Ah AGM batteries with T2 terminals.
Latest Update: 14 March 2025

OEM Battery Cross Reference

Confirmed Compatible Model
Device Model Original Battery Configuration Replacement
Cyberpower Rb1280x2a UPS 2 x 12V 9Ah - 108Wh CB129X2-10401 / 2 x CB129
This replacement battery kit is suitable for the confirmed compatible model listed above and matches the required 2 x 12V 9Ah AGM battery configuration with T2 terminals.

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