---
product_id: 131079296
title: "CyberPower RB1290X2 UPS Replacement Battery Cartridge"
brand: "cyberpower"
price: "€ 339.42"
currency: EUR
in_stock: true
reviews_count: 13
category: "Cyber Power"
url: https://www.desertcart.com.cy/products/131079296-cyberpower-rb1290x2-ups-replacement-battery-cartridge
store_origin: CY
region: Cyprus
---

# High surge current capacity 12V/9Ah sealed lead-acid power User-installable pre-assembled cartridge CyberPower RB1290X2 UPS Replacement Battery Cartridge

**Brand:** cyberpower
**Price:** € 339.42
**Availability:** ✅ In Stock

## Summary

> 🔋 Power up your productivity—never let downtime slow you down!

## Quick Answers

- **What is this?** CyberPower RB1290X2 UPS Replacement Battery Cartridge by cyberpower
- **How much does it cost?** € 339.42 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/131079296-cyberpower-rb1290x2-ups-replacement-battery-cartridge)

## Best For

- cyberpower enthusiasts

## Why This Product

- Trusted cyberpower brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Peace of Mind Warranty:** 18-month coverage ensures your investment stays protected and worry-free.
- • **Plug & Play Power Boost:** Restore your UPS in minutes with a pre-assembled, user-installable battery cartridge.
- • **Leak-Proof & Eco-Friendly:** Sealed lead-acid design with reusable packaging for easy recycling—power with a conscience.
- • **Reliable 12V/9Ah Capacity:** Delivers robust, maintenance-free power to keep your devices running longer.
- • **Extended Runtime Assurance:** Up to 5+ hours of backup to keep your workflow uninterrupted during outages.

## Overview

The CyberPower RB1290X2 UPS Replacement Battery Cartridge features two sealed 12V/9Ah lead-acid batteries designed for quick, user-friendly installation. Compatible with multiple CyberPower UPS models, it offers maintenance-free, leak-proof power with high surge capacity and up to 5+ hours runtime. Packaged for eco-conscious recycling and backed by an 18-month warranty, it’s the smart upgrade for professionals demanding reliable backup power.

## Description

The RB1290X2 UPS Replacement Battery Cartridge restores life to CyberPower UPS systems that have weak or completely depleted internal batteries. The RB1290X2 contains two 12V/9AH batteries, certified to meet or exceed original manufacturer specifications. This leak-proof, sealed lead-acid battery never requires replacement fluid. The pre-assembled cartridge installs easily into your CyberPower UPS system and is shipped with reusable packaging for delivering expired batteries to a suitable recycling center. The RB1290X2 comes with instructions, recycling information, and an eighteen-month warranty. UPS Compatibility: BRG1350AVRLCD, BRG1500AVRLCD, LX1500GU, CP1350AVRLCD, CP1500AVRLCD, CST150XLU. Also compatible with model CP1500PFCLCD (with serial numbers beginning with 'CXX').

Review: Great OEM Battery Replacement for CP 1500va! - Install was straight forward. Once they were installed I followed the instructions to make sure that the battery test completed with success. Battery capacity is back up to 100% and this stopped the occasional E02 error I was getting. I set a reminder to check the battery at 3 and 5 years going forward.
Review: Identical to original - Fit perfect and directly replaced originals. No issues

## Features

- The CyberPower RB1290X2 UPS Replacement Battery Cartridge restores life to CyberPower UPS systems that have weak or completely depleted internal batteries; It comes with two 12V/9Ah sealed lead-acid batteries
- SEALED LEAD-ACID BATTERIES: Supplies high surge currents, provides robust power-to-weight ratios, and cost effective; MAINTENANCE-FREE BATTERY FLUID: Never requires replacement
- USER-INSTALLABLE CARTRIDGE: Allows for quick and convenient installation; each cartridge is pre-assembled; The RB1290X2 comes in reusable packaging for delivering expired batteries to recycling centers
- Compatible with these CyberPower models: BRG1350AVRLCD, BRG1500AVRLCD, LX1500GU, CP1350AVRLCD, CP1500AVRLCD, CST150XLU, and CP1500PFCLCD (with serial numbers beginning with 'CXX')
- 18-MONTH WARRANTY: Covers defects in materials and workmanship in the product under normal use and conditions within eighteen months of the purchase date

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07QHG2JTF |
| Amperage | 9 A |
| Battery Average Life | 3 years |
| Battery Cell Composition | Lead Acid |
| Battery Cell Type | Lead Acid |
| Best Sellers Rank | #31 in Computer Uninterruptible Power Supply Units |
| Brand | CyberPower |
| Built-In Media | Battery |
| Color | White |
| Connector Type | IEC 320 |
| Customer Reviews | 4.6 out of 5 stars 392 Reviews |
| Enclosure Material | Plastic |
| Form Factor | Battery |
| Global Trade Identification Number | 00649532620975 |
| Input Voltage | 12 volts |
| Item Dimensions | 3.9 x 5.9 x 2.6 inches |
| Item Dimensions D x W x H | 3.9"D x 5.9"W x 2.6"H |
| Item Highlight | Maintenance-Free, User Installable, 12V/9Ah , Black |
| Lower Temperature Rating | 32 °F |
| Manufacturer | CyberPower |
| Material | Plastic |
| Mfr Part Number | RB1290X2 |
| Model Number | RB1290X2 |
| Number of Items | 1 |
| Number of Outlets | 6 |
| Number of Packs | 1 |
| Output Current | 9 A |
| Output Voltage | 12 volts_of_direct_current |
| Product Dimensions | 3.9"D x 5.9"W x 2.6"H |
| Runtime | 5 hours and 15 minutes |
| UPC | 649532620975 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 104 °F |
| Voltage | 125 volts |
| Warranty Description | 18 Month Warranty |
| Wattage | 108 watts |

## Product Details

- **Battery Cell Composition:** Lead Acid
- **Brand:** CyberPower
- **Color:** White
- **Product Dimensions:** 3.9"D x 5.9"W x 2.6"H
- **Voltage:** 125 volts

## Images

![CyberPower RB1290X2 UPS Replacement Battery Cartridge - Image 1](https://m.media-amazon.com/images/I/610sSIuk0LL.jpg)

## Questions & Answers

**Q: Are these 12 volt batteries?**
A: Yes they are 12V batteries.

**Q: Is there a lithium upgrade for the cp1500pfclcd pfc?**
A: Currently there is not.

**Q: What is the replacement battery designation/identifier/nbr for a cyberpower cp 1200 avr unit ?>>>>**
A: RB1270X2C (for serial numbers that begin with "CT6" or "CDM")
RB1280X2D (for serial numbers that begin with "CPD")

**Q: Why doesn't cyberpower sell these batteries like the 1280 2A models so they are already fixed with tape and center divider would make it a lot easier**
A: The ones I received did have the center piece and the tape already attached and ready to go.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great OEM Battery Replacement for CP 1500va!
*by M***I on March 2, 2026*

Install was straight forward. Once they were installed I followed the instructions to make sure that the battery test completed with success. Battery capacity is back up to 100% and this stopped the occasional E02 error I was getting. I set a reminder to check the battery at 3 and 5 years going forward.

### ⭐⭐⭐⭐⭐ Identical to original
*by J***F on July 25, 2026*

Fit perfect and directly replaced originals. No issues

### ⭐⭐⭐⭐⭐ Wish I knew how easy it was to replace batteries on these external batteries sooner
*by S***K on December 8, 2023*

First, I want to say that most people (like myself) are hesitant to try changing their batteries on their own because they are not sure what model of batteries to buy. Also because they think that they are be hard to replace. Well, let me tell you right now that finding out which batteries you need is very easy, and actually replacing them takes no longer than 15 minutes. For people that don't want to read, these replacement batteries is for the CP1500AVRLCD model. Make sure the replacement batteries you get matches the serial number rule below (found this from doing a simple Google Search): RB1290X2 (for serial numbers that begin with “CTH” or “CXE”) RB1280X2A (for serial numbers that begin with “CPT” or “CPA”) Read on below for a much more detailed explanation on what to do if you're feeling hesitant... Let me tell you how to find out what batteries you need. Go do a simple Google search of your system's model. To do this, simply type what you see on the front end of your CyberPower battery. In my case, as seen in the images, I looked up "CyberPower 1500VA AVR". After that, you will come to realize that there aren't much similar batteries they sell, so my model only have one product code (CP1500AVRLCD) so i became sure this was what i have. Now, make sure to take note of your serial number because you are gonna need it to really confirm if the batteries you are getting is correct (check above for more details on this). Once you are sure that these are the batteries you need, then unscrew two screws on the bottom of the system, slide the front panel down... and it should come off. Beware that there is a flat cable that you need to unplug from the front panel first before taking the whole panel out. This is what connects to the screen. After doing so, unscrew the two screws in the middle, and you should be able to unplug the wires, and just pull out the batteries. Unplugging may take a little effort/strength because in my case i really had to pull hard, don't worry.. you won't break them. PLEASE remember which wire goes to where. There are only three wires total, so there shouldn't be any explanation on what to plug where needed. It's very straightforward... One word of caution is that these are live batteries, so whatever you do, don't touch both of the parts where we connect the wires at the same time with metal. It will cause a spark and you'll definitely be scared. But, Its fine to touch them with you hands one by one to be on the safer side. Now, just plop the batteries back into the case (same way how they were initially or look again on my images above to make sure). Screw the middle bracket back, and plug the flat wire back onto the front panel. put the front panel back on and don't forget the two screws you took off initially... Then you're good to go! plug it in and turn it on! Enjoy your fresh batteries, and be proud you saved around $100 for not having to buy a new system entirely!

## Frequently Bought Together

- CyberPower RB1290X2 UPS Replacement Battery Cartridge, Maintenance-Free, User Installable, 12V/9Ah
- CyberPower CP1500PFCLCD PFC Sinewave UPS System, 1500VA/1000W, 12 Outlets, AVR, Mini Tower,Black
- CyberPower RB1280X2B UPS Replacement Battery Cartridge, Maintenance-Free, User Installable, 12V/8Ah

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-10-20*