Batteries For Cyberpower Rb1290x6ps UPS, 6 X 12v, 9ah - 108wh
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.
Technical Specifications
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
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.
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 IMAGETechnical Specifications
| 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 |
Battery Cross Reference
| Compatible UPS Model | Battery Configuration | Replacement Battery | Terminal | Kit Quantity |
|---|---|---|---|---|
| CyberPower RB1290X6PS | 6 x 12V 9Ah | CB129 | T2 | 6 |
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.




