Liebert GXT4-1500RT120 UPS System, Battery Cartridge 4 X 12v 9ah
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.
Liebert GXT4-1500RT120 UPS System Replacement Battery Cartridge - 4 x 12V 9Ah
Reliable 12V 9Ah Sealed Lead Acid (AGM) replacement batteries designed to restore dependable backup performance for the Liebert GXT4-1500RT120 UPS System. This complete 4-battery cartridge set helps maintain stable runtime and trusted protection during outages, voltage dips, and power fluctuations.
Technical Specifications
Key Benefits
- Reliable Backup Runtime: Each battery delivers 12V 9Ah for dependable UPS protection.
- Maintenance-Free AGM Design: Spill-proof sealed construction for safe and efficient operation.
- Direct UPS Compatibility: Engineered for the Liebert GXT4-1500RT120 UPS System.
- Complete 4-Battery Set: Includes the full internal battery quantity required for replacement.
- Easy Installation: T2 terminals support secure connection during installation.
- Built for Demanding Use: High-grade materials help maximise service life and energy retention.
Compatible Models
Liebert
Designed as a replacement battery cartridge for the Liebert GXT4-1500RT120 UPS System.
What's Included
- 4 x 12V 9Ah AGM batteries
- T2 terminal configuration
- Replacement battery set for full cartridge refresh
- Existing wiring harness and connectors must be re-used
Warranty & Returns
- 1-Year Warranty
- 30-Day Return Policy
Please confirm your UPS model and battery configuration before ordering to ensure correct fitment.
Important Installation Notes
- Re-use your existing wiring harness and connectors during installation.
- Some assembly is required when fitting the replacement battery set.
- Install carefully and follow all UPS safety guidance for best performance.
- Check terminal orientation and battery placement before completing installation.
Why Choose This Replacement Pack
- Restores backup performance for your Liebert UPS system.
- Helps protect connected electronics during unexpected power loss.
- High-capacity 9Ah design supports stable runtime under load.
- Suitable for professional, office, IT, and equipment protection environments.
Reliable Power for Continuous UPS Protection
Keep your Liebert GXT4-1500RT120 UPS System performing at its best with this 4 x 12V 9Ah replacement battery cartridge set. Built for dependable standby power and consistent UPS operation, this complete AGM battery pack is an ideal solution for restoring runtime and maintaining critical backup protection.
Want Instant Shipping Costs?
Want Instant Shipping Costs?
🚚 Instant Shipping Costs?
It’s super simple! Just add the product you want to your cart, enter the quantity and your postal code, and you'll instantly see real-time shipping rates for all in-stock items. Fast, easy, and totally hassle-free!
💡 Shipping heavy or bulk items?
If your order includes multiple heavy products, we recommend requesting a custom quote — we may be able to arrange a better rate with a transport truck!
Please note: We reserve the right to send heavier items by transport truck if the carrier's maximum weight per package is exceeded or if we consider it too risky to place with a courier due to the possibility of damage occurring.
🔋 What’s mAh All About?
🔋 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
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!!
How to Look after your new lithium battery!!
See how to look after your battery if its lithium Lithium Care
Delivery and Shipping
Delivery and Shipping
See our shipping policy and details at this link Shipping Details
ADVISORY:- ABOUT OUR IMAGES
📸 Send Us Your Battery Image
Not sure which replacement battery you need? Just snap a Photo / Video of your current battery and send it our way! Our team will quickly identify the exact match and recommend the perfect replacement model — no guesswork, no hassle.
🔍 Fast, Expert Assistance
We’ve helped thousands of customers find the right battery — let us do the same for you. Whether it’s for an alarm system, emergency light, or industrial equipment, we’ve got you covered.
📤 Click below to post your image and get started:
POST YOUR IMAGEImages from our customers
Technical Specifications
| Battery Details | |
|---|---|
| Category | UPS Backup Battery Cartridge |
| Brand | CB Range |
| Battery Model | CB129 |
| Battery Chemistry | Sealed Lead Acid (AGM) |
| Rechargeable | Yes |
| Voltage | 12V |
| Capacity | 9Ah per battery |
| Pack Quantity | 4 Batteries |
| Terminal Type | T2 |
| Length | 5.95 inches / 151mm |
| Width | 2.56 inches / 65mm |
| Height | 3.70 inches / 94mm |
| Height to Top of Terminal | 3.94 inches / 100mm |
| Gross Weight | 10kg / 22.05lbs |
| SKU | CB129X4-GXT41500RT120 |
| Confirmed Compatibility | |
| Fits Brand | Liebert |
| Confirmed Model | Liebert GXT4-1500RT120 UPS System |
| Replacement Configuration | 4 × 12V 9Ah AGM sealed lead-acid batteries with T2 terminals |
| Typical Applications | |
| Applications | UPS backup systems, rackmount UPS units, network protection, server backup power, power continuity for critical electronics |
OEM Battery Cross Reference
| Confirmed Device / Search Match | Original Battery Configuration | Replacement |
|---|---|---|
| Liebert GXT4-1500RT120 UPS System | 4 × 12V 9Ah AGM, T2 terminals | CB129X4-GXT41500RT120 |
| Liebert GXT4-1500RT120 replacement battery cartridge | 4 × 12V 9Ah AGM, T2 terminals | CB Range CB129 (4 Pack) |
| GXT4-1500RT120 UPS battery replacement | 4 × 12V 9Ah sealed lead acid batteries | CB Range CB129 (4 Pack) |
| Liebert GXT4-1500RT120 4 battery kit | 12V 9Ah AGM battery set | CB129X4-GXT41500RT120 |
Compatibility & Replacement Information
Direct Replacement Battery Kit
This kit is configured as a direct 4-battery replacement set for the Liebert GXT4-1500RT120 UPS System using 12V 9Ah AGM batteries with T2 terminals.
Correct Battery Quantity
The complete replacement requires 4 batteries, making this pack suitable for full internal battery renewal rather than single-battery replacement.
UPS Backup Performance
AGM sealed lead acid batteries are widely used in UPS systems because they are maintenance-free, spill-resistant, and well suited for standby backup applications.
Terminal Type
This battery set uses T2 terminals, helping ensure proper fitment where the original Liebert battery cartridge requires the larger faston-style connection.
Common Search Terms
Buyers may also search for Liebert GXT4-1500RT120 battery replacement, GXT4-1500RT120 UPS battery kit, or 4 × 12V 9Ah Liebert UPS batteries when looking for this product.
Installation Note
Always match battery voltage, capacity, pack quantity, physical dimensions, and terminal style before installation to maintain correct UPS operation and runtime performance.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
