---
product_id: 131079296
title: "CyberPower RB1290X2 UPS Replacement Battery Cartridge, Maintenance-Free, User Installable, 12V/9Ah"
brand: "cyberpower"
price: "33174 kr"
currency: ISK
in_stock: true
reviews_count: 8
url: https://www.desertcart.is/products/131079296-cyberpower-rb1290x2-ups-replacement-battery-cartridge-maintenance-free-user-installable
store_origin: IS
region: Iceland
---

# High surge current capacity 12V/9Ah power-packed cells User-installable, maintenance-free CyberPower RB1290X2 UPS Replacement Battery Cartridge, Maintenance-Free, User Installable, 12V/9Ah

**Brand:** cyberpower
**Price:** 33174 kr
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your peace of mind—upgrade your UPS effortlessly!

## Quick Answers

- **What is this?** CyberPower RB1290X2 UPS Replacement Battery Cartridge, Maintenance-Free, User Installable, 12V/9Ah by cyberpower
- **How much does it cost?** 33174 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/131079296-cyberpower-rb1290x2-ups-replacement-battery-cartridge-maintenance-free-user-installable)

## 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

- • **Eco-Friendly Packaging:** Reusable packaging encourages responsible recycling, aligning with your sustainable lifestyle and corporate responsibility goals.
- • **Surge-Ready Performance:** Designed to handle high surge currents, ensuring your critical devices stay protected during power fluctuations.
- • **Hassle-Free Installation:** Pre-assembled, user-installable cartridge means zero downtime and no technical headaches—upgrade your UPS in minutes.
- • **Power Up with Confidence:** Dual 12V/9Ah sealed lead-acid batteries deliver reliable, robust energy to keep your UPS systems running smoothly.
- • **Maintenance-Free Reliability:** Sealed lead-acid design means no battery fluid replacement ever—focus on your work, not upkeep.

## Overview

The CyberPower RB1290X2 is a maintenance-free, user-installable UPS replacement battery cartridge featuring two sealed 12V/9Ah lead-acid batteries. Engineered for high surge current capacity and compatibility with multiple CyberPower UPS models, it ensures reliable backup power with an 18-month warranty and eco-conscious packaging for easy recycling.

## 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.

Review: Those terminal wires...🤬 - Worked perfect for my cyberpower cp1500pfclcd pfc which the batteries held up well on for almost 5 years! NGL, getting the wires off the terminals almost resulted in a Christmas Story reenactment of Old Man Parker's colorful dialect, but I triumphed in the end. We'll see how well these hold up in this post-covid time where QC is lacking on almost EVERYTHING.
Review: Good batteries. - Good batteries for to swap out to when the old ones go bad.

## 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
- 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 |
|---------------|-------|
| Material Type | Sealed Lead-Acid |
| Battery Cell Composition | Sealed Lead Acid |
| EU Spare Part Availability Duration | 18 Months |
| Power Plug | Type A - 2 pin (North American) |
| Wattage | 108 watts |
| Input Voltage | 12 Volts |
| Voltage | 12 Volts |
| Amperage | 9 Amps |
| Form Factor | Rack |
| Color | White |

## Product Details

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

## Images

![CyberPower RB1290X2 UPS Replacement Battery Cartridge, Maintenance-Free, User Installable, 12V/9Ah - Image 1](https://images-na.ssl-images-amazon.com/images/G/01/x-locale/common/grey-pixel.gif)

## 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

### ⭐⭐⭐⭐⭐ Those terminal wires...🤬
*by L***T on October 22, 2025*

Worked perfect for my cyberpower cp1500pfclcd pfc which the batteries held up well on for almost 5 years! NGL, getting the wires off the terminals almost resulted in a Christmas Story reenactment of Old Man Parker's colorful dialect, but I triumphed in the end. We'll see how well these hold up in this post-covid time where QC is lacking on almost EVERYTHING.

### ⭐⭐⭐⭐⭐ Good batteries.
*by A***. on December 12, 2025*

Good batteries for to swap out to when the old ones go bad.

### ⭐⭐⭐⭐⭐ 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 Iceland*
*Store origin: IS*
*Last updated: 2026-02-03*