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CB Range  |  SKU: CB129X6-10408

Batteries For Cyberpower Rb1290x6ps UPS, 6 X 12v, 9ah - 108wh

🚀 In stock and ready for shipment from our warehouse. Pickup NOT available for this product
Sale price $198.99 CAD Regular price $221.00
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Just a Quick Reminder!
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 RB1290X6PS – 12V 9Ah Replacement Pack (6 Batteries)

Reliable 12V 9Ah AGM sealed lead acid replacement batteries designed to restore dependable backup performance for your CyberPower UPS. This 6-pack delivers stable power, maintenance-free operation, and a precise fit for compatible UPS systems.

12V Output 9Ah Capacity Each 6 Batteries Included AGM / Sealed Lead Acid T2 Terminals

Technical Specifications

Product TypeUPS Replacement Battery Kit
Battery ModelCB129
BrandCB Range
ChemistrySealed Lead Acid (AGM)
Voltage12V
Capacity9Ah per battery
Pack Quantity6 Batteries
Terminal TypeT2
Dimensions (Each)5.95" × 2.56" × 3.70"
Height to Terminal3.94"
Gross Weight15 kg / 33.07 lbs
SKUCB129

Key Benefits

  • Reliable Backup Power: Restores dependable UPS performance during outages and voltage interruptions.
  • High-Quality AGM Design: Maintenance-free sealed construction for clean, spill-proof operation.
  • Exact Application Fit: Designed for the CyberPower RB1290X6PS replacement battery configuration.
  • Stable Energy Delivery: 12V 9Ah output per battery supports consistent UPS runtime.
  • Easy Installation: T2 terminals provide secure connection using your existing cables and connectors.
  • Complete 6-Pack Kit: Includes the full battery set needed for replacement.

Compatible Models

CyberPower

RB1290X6PS

Please verify your existing battery size, terminal type, and UPS model before ordering.

What’s Included

  • 6 × 12V 9Ah AGM batteries
  • T2 terminal configuration
  • Requires re-use of existing connectors and cables
  • Some assembly required

Warranty & Returns

  • 30-Day Return Policy
  • 1-Year Warranty

Handle and install batteries carefully to ensure safe operation and optimal UPS performance.

Built for Dependable UPS Performance

This replacement battery pack for the CyberPower RB1290X6PS is built to deliver the reliable standby power your UPS system needs. With durable AGM construction, strong energy retention, and a full 6-battery pack included, it is an ideal solution for keeping critical equipment protected.

Order now to keep your UPS running at peak performance.

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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 RB1290X6PS UPS – 6 x 12V 9Ah Replacement Battery Kit
Product Details
Product Model Batteries for CyberPower RB1290X6PS UPS – 6 x 12V 9Ah
Brand CB Range
Type UPS Battery Replacement Kit
SKU CB129X6-10408
Individual Battery Model CB129
Battery Chemistry AGM (Sealed Lead Acid)
Rechargeable Yes
Voltage per Battery 12V
Capacity per Battery 9Ah
Energy per Battery 108Wh
Number of Batteries in Kit 6
Terminal Type T2
Gross Weight 15 kg / 33.07 lbs
Battery Dimensions
Length 5.95 inches / 151 mm
Width 2.56 inches / 65 mm
Height 3.70 inches / 94 mm
Height to Top of Terminal 3.94 inches / 100 mm
Kit Application
Replacement For CyberPower RB1290X6PS UPS
Pack Configuration 6 x 12V 9Ah batteries
High-capacity AGM replacement battery kit built for dependable UPS backup performance and straightforward installation in compatible CyberPower systems.
Latest Update: 14 March 2025

Battery Cross Reference

Compatible UPS Model Battery Configuration Replacement Battery Terminal Kit Quantity
CyberPower RB1290X6PS 6 x 12V 9Ah CB129 T2 6
Compatible UPS Model CyberPower RB1290X6PS
Replacement Battery Model CB129
Battery Quantity 6 batteries per kit
Battery Rating 12V 9Ah each
Battery Chemistry AGM Sealed Lead Acid
Terminal Type T2
Individual Battery Size 151 x 65 x 94 mm
Height Including Terminal 100 mm
This replacement kit is configured for the confirmed CyberPower RB1290X6PS UPS battery setup using 6 x 12V 9Ah AGM batteries with T2 terminals.

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