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CB Range  |  SKU: CB125X4-10705

Batteries For Liebert Gxt3-1000mt120 - 1000va/900w UPS, 4 X 12v, 5ah - 60wh

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Sale price $110.99 CAD Regular price $122.75
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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 Liebert GXT3-1000MT120 - 1000VA/900W – 12V 5Ah (4 Pack)

High-quality 12V 5Ah sealed lead acid AGM replacement battery pack designed to restore dependable backup performance for the Liebert GXT3-1000MT120 UPS system. Built for stable standby power, reliable runtime, and a precise fit in demanding UPS applications.

12V 5Ah Each 4 Batteries Included AGM Sealed Lead Acid T2 Terminals

Technical Specifications

BrandCB Range
Battery ModelCB125
Battery TypeSealed Lead Acid (AGM)
Voltage12V
Capacity5Ah per Battery
Pack Quantity4 Batteries
Terminal TypeT2
SKUCB125
Dimensions (Each)3.54 × 2.76 × 3.98 in
Height to Terminal4.21 in
Gross Weight6.4 Kg / 14.11 lbs
ApplicationUPS Backup Power

Key Benefits

  • Reliable UPS Backup: Restores dependable standby power for your Liebert UPS during outages.
  • Maintenance-Free AGM Design: Spill-proof sealed construction for clean, hassle-free use.
  • Complete 4-Battery Kit: Includes the full set required for replacement.
  • Stable Performance: 12V 5Ah output per battery supports consistent UPS operation.
  • Easy Installation: T2 terminals provide secure connection using your existing setup.
  • Compact Fit: Sized for UPS battery compartments requiring this form factor.
  • Warranty Protection: Backed by a 1-year warranty and 30-day return policy.

Compatible Models

Liebert

GXT3-1000MT120 1000VA / 900W

Designed as a replacement battery pack for compatible Liebert UPS systems using four 12V 5Ah batteries.

Important Notice

  • Reuse Existing Connectors and Cables: Some assembly is required during installation.
  • Check Terminal and Battery Layout: Confirm your current battery set matches before ordering.
  • Handle with Care: Install correctly to ensure safe operation and best performance.

Warranty & Returns

  • 30-Day Return Policy
  • 1-Year Warranty

Always verify your existing battery size, terminal type, and quantity before purchase to ensure correct fitment.

Dependable Replacement Power for Liebert UPS Systems

Keep your Liebert GXT3-1000MT120 ready for critical backup duties with this complete 4-pack of CB Range 12V 5Ah AGM batteries. Built for reliable UPS performance, simple replacement, and dependable standby power when it matters most.

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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 Liebert GXT3-1000MT120 - 1000VA/900W UPS – 4 x 12V 5Ah AGM Battery Kit
Product Details
Product Type UPS Replacement Battery Kit
Brand CB Range
SKU CB125X4-10705
Battery Model CB125
Compatible UPS Model Liebert GXT3-1000MT120 - 1000VA/900W UPS
Battery Chemistry AGM (Sealed Lead Acid)
Rechargeable Yes
Voltage per Battery 12V
Capacity per Battery 5Ah
Battery Pack Quantity 4 Batteries
Total Nominal Energy 240Wh
Terminal Type T2
Gross Weight (Kit) 6.4 Kg / 14.11 lbs
Battery Dimensions (Per Battery)
Length 3.54 inches / 90 mm
Width 2.76 inches / 70 mm
Height 3.98 inches / 101 mm
Height to Top of Terminal 4.21 inches / 107 mm
Typical Applications
Applications UPS backup systems, server protection, network equipment backup, telecom power continuity, critical electronics support
This 4-battery replacement kit is designed for the Liebert GXT3-1000MT120 1000VA/900W UPS system and provides dependable sealed AGM backup power for business-critical equipment and uninterrupted operation during mains power loss.
Latest Update: 14 March 2025

OEM Battery Cross Reference

Device Model Original Battery Type Replacement
Liebert GXT3-1000MT120 - 1000VA/900W UPS 12V 5Ah AGM Battery Pack (4 Required) CB Range CB125 x 4
This replacement battery kit is suitable for the confirmed UPS model listed above and supplies 4 x 12V 5Ah AGM batteries for a complete compatible replacement set.
Compatible Liebert GXT3-1000MT120 battery replacement information
If you are searching for a replacement battery for the Liebert GXT3-1000MT120 UPS, this kit includes four 12V 5Ah sealed lead acid AGM batteries designed for dependable backup power performance. It is intended for users replacing a worn or depleted internal UPS battery set in the 1000VA / 900W model.
What is included in this UPS battery kit?
This battery set includes 4 x CB125 12V 5Ah AGM batteries. Each battery uses sealed lead acid technology and T2 terminals, making the kit suitable for UPS maintenance where four matching batteries are required for full pack replacement.
Why replace all four batteries together?
In multi-battery UPS systems, replacing the full set at the same time helps maintain balanced charging and discharge performance. Using four matching 12V 5Ah AGM batteries together supports more stable runtime and helps avoid uneven wear between old and new batteries.
Common search terms for this battery replacement
Buyers may search for this product using terms such as: Liebert GXT3-1000MT120 battery replacement, Liebert 1000VA 900W UPS battery kit, 4 x 12V 5Ah UPS batteries, GXT3-1000MT120 AGM battery pack, and replacement batteries for Liebert GXT3 UPS.

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