CyberPower
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CyberPower RB1290X2 UPS Replacement Battery Cartridge, Maintenance-Free, User Installable, 12V/9Ah , Black
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CyberPower RB1290X2 UPS Replacement Battery Cartridge, Maintenance-Free, User Installable, 12V/9Ah , Black
Restores life to CyberPower UPS systems that have weak or completely depleted internal batteries.
CyberPower RB1290X2 UPS Replacement Battery Cartridge, Maintenance-Free, User Installable, 12V/9Ah , Black
Item #: 88405367

CyberPower RB1290X2 UPS Replacement Battery Cartridge, Maintenance-Free, User Installable, 12V/9Ah , Black

Item #: 88405367

SGD 172

Price Details

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*All items will import from US

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Order now and get it around Tuesday, July 28
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Restores life to CyberPower UPS systems that have weak or completely depleted internal batteries.
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What Stands Out

Maintenance-Free
The CyberPower RB1290X2 is maintenance-free, allowing for hassle-free operation without regular upkeep, making it an ideal choice for users seeking a reliable and low-maintenance UPS solution.
User Installability
Designed for easy user installation, this cartridge eliminates the need for professional assistance, saving time and money while empowering users to quickly replace batteries on their own.
Reliable Power Backup
With a 12V/9Ah capacity, this battery cartridge ensures uninterrupted power supply during outages, providing peace of mind for sensitive electronic devices and critical systems.

Product Details

Shop online for CyberPower RB1290X2 UPS Replacement Battery Cartridge at Ubuy Singapore. Replace your UPS battery with this maintenance-free and user-installable 12V9Ah battery.
Item Weight5 lbs (2.27 kg)

Dangerous Goods

To avoid the delay in customs clearance process for Dangerous Goods, the shipment shall be opened at our warehouse facility to check the severity of hazardous components. Please see the list of Dangerous goods here.

Who Should Buy?

Suitable For
  • Home Office Users

    Ideal for remote workers needing reliable power backup and surge protection for their essential devices.

  • Small Business Owners

    Perfect for small businesses requiring uninterrupted operation during power outages to protect critical hardware.

  • Tech Savvy Individuals

    Those comfortable with DIY installations will appreciate the user-friendly, maintenance-free features of this battery.

Not Suitable For
  • Large Enterprises

    Not suitable for large-scale operations needing higher capacity backup solutions for extensive technology stacks.

  • Non-technical Users

    Users unfamiliar with battery installation may find the process challenging despite the user-installable feature.

  • Outdoor Use

    This product is designed for indoor use and not for environments exposed to outdoor elements or extreme conditions.

Product Description

CyberPower RB1290X2 UPS Replacement Battery Cartridge, Maintenance-Free, User Installable, 12V/9Ah , Black

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is the capacity of the CyberPower RB1290X2 UPS Replacement Battery?

    Answer: The CyberPower RB1290X2 UPS Replacement Battery has a capacity of 12V and 9Ah. This specification ensures that the battery can effectively support your UPS system by providing sufficient power for devices during outages. Proper capacity is crucial for maintaining the performance of your electronics, such as computer systems and networking hardware, ensuring they remain operational even in unexpected situations.
  • Question: Is the CyberPower RB1290X2 maintenance-free?

    Answer: Yes, the CyberPower RB1290X2 battery is maintenance-free, meaning you do not need to check water levels or perform regular upkeep as with some other types of batteries. This design allows for hassle-free use and gives you peace of mind, letting you focus on your tasks without worrying about battery maintenance. It's perfect for users who want reliable backup power without the commitment of regular maintenance checks.
  • Question: How do I install the CyberPower RB1290X2 battery cartridge?

    Answer: Installing the CyberPower RB1290X2 battery cartridge is straightforward and designed for user installation. Begin by turning off your UPS and unplugging it from the wall. Open the battery compartment, remove the old battery, and install the new cartridge by aligning it correctly with the connectors. Ensuring no excess force is used will prevent damage. This user-friendly design allows anyone to replace the battery without needing advanced technical skills, making it accessible for home and office settings.
  • Question: What devices can benefit from using the CyberPower RB1290X2 battery?

    Answer: The CyberPower RB1290X2 battery is ideal for various electronic devices, particularly those connected to an Uninterruptible Power Supply (UPS). Common uses include protecting computers, networking equipment, and critical servers from power outages. This versatility ensures that vital operations can continue uninterrupted, making it an excellent choice for both home offices and commercial environments where downtime can have significant impacts.
  • Question: How often should I replace the CyberPower RB1290X2 battery?

    Answer: It's typically recommended to replace the CyberPower RB1290X2 battery every 3 to 5 years, but this can vary based on usage and environmental conditions. Regularly checking the performance of your battery by monitoring power fluctuations or any alerts from your UPS can help determine when it's time for replacement. Keeping track of battery health ensures that you have reliable backup power, thereby safeguarding your critical electronic devices during outages.
  • Question: Can I use the CyberPower RB1290X2 with other UPS brands?

    Answer: While the CyberPower RB1290X2 is specifically designed for CyberPower UPS systems, using it with other brands is not recommended. Each UPS may have specific voltage and battery chemistry requirements, and using an incompatible battery could lead to performance issues or damage. Sticking to the recommended battery ensures that your system operates efficiently and safely, retaining the performance designed by the manufacturer.
  • Question: What safety features are included in the CyberPower RB1290X2 battery?

    Answer: The CyberPower RB1290X2 battery incorporates several safety features, including short circuit and overcharge protection, which help to ensure safe operations. These features are crucial for preventing damage to both the battery and your connected devices. The maintenance-free design further adds to safety by eliminating the risks associated with traditional lead-acid batteries that might leak or require constant checking.
  • Question: What are the dimensions of the CyberPower RB1290X2 battery cartridge?

    Answer: The CyberPower RB1290X2 battery cartridge typically measures approximately 5.9 x 3.8 x 3.9 inches. Knowing the dimensions is important for ensuring it fits properly in your specific UPS model and does not interfere with other components. Accurate sizing is essential, especially in constrained spaces, allowing for organized and efficient use of your power backup solutions.
  • Question: If my UPS is still operational, can I wait to replace the CyberPower RB1290X2 battery?

    Answer: While your UPS may seem operational, it's advisable to monitor battery performance closely. Batteries degrade over time, even under moderate use, and failure to replace an aging battery can lead to unexpected outages. Proactively replacing your CyberPower RB1290X2 ensures that you maintain dependable power backup for critical devices, preventing potential data loss and equipment damage during power interruptions.
  • Question: Where can I buy CyberPower RB1290X2 UPS Replacement Battery Cartridge in Singapore?

    Answer: You can buy the CyberPower RB1290X2 UPS Replacement Battery Cartridge from Ubuy in Singapore. Ubuy offers a convenient shopping experience, providing access to the product and reliable customer support. Their platform features user reviews and detailed product information to help you make an informed choice, ensuring your specific power backup needs are adequately met.

CyberPower Uninterruptible Power Supply (UPS) Editorial Review

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“The product received very good packaging & safe…Thank You”

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12 June 2026 · via Trustpilot
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  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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SGD 172

Order now and get it around Tuesday, July 28

QTY:

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PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.

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Fastest cross-border delivery

Features & Benefits

  • Restores power and functionality to your CyberPower UPS systems.
  • Maintenance-free battery fluid means no need for replacements.
  • User-installable cartridge for quick and hassle-free setup.
  • Includes two 12V/9Ah sealed lead-acid batteries.
  • Reusable packaging simplifies battery recycling.
  • Compatible with popular CyberPower UPS models.

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