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SigmasTek  |  SKU: BW-1421

High Performance SLA Replacement Battery Set Compatible With CyberPower RB1280X2B 10.51 lb

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New arrival
Sale price $53.99 USD Regular price $73.99
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Includes 2 replacement 12V 7.5AH UPS batteries for CyberPower RB1280X2B
Features Absorption Glass Mat (AGM) sealed battery technology for durability
UL certified for safety and reliable performance
Guaranteed compatibility with original battery specifications
1-year warranty and fast UPS Ground or USPS shipping
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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

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⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.


Volts & Amps

12 Volts | 7.5 Ah

Terminal Type

F2

CyberPower RB1280X2B Replacement Batteries — Compatible with CyberPower RB1280X2B

Restore reliable backup power to your CyberPower RB1280X2B with this premium replacement UPS battery cartridge set. Designed for compatibility, performance, and reliability, this package contains the two 12V 7.5AH sealed lead-acid batteries required by the RB1280X2B cartridge. Built with AGM (Absorbed Glass Mat) technology and UL certification, these batteries deliver consistent, maintenance-free performance so your UPS continues to protect critical equipment when mains power fails.

Key Specifications

  • Compatible UPS Model: CyberPower RB1280X2B
  • Package contains: 2 batteries
  • Voltage: 12 V
  • Amp Hours: 7.5 AH
  • Chemistry: SLA (Sealed Lead Acid)
  • Battery Technology: AGM (Absorption Glass Mat)
  • Terminal Type: F2
  • Weight: 10.5 Lbs
  • Length: 5.95 In
  • Width: 2.56 In
  • Height: 3.7 In
  • UL Certified: Yes (Underwriters Laboratories)
  • Brand / Manufacturer Info: SigmasTek (sourced by ReplaceUPSBattery.com)
  • Warranty: 1-year Warranty
  • Shipping Methods: UPS Ground and USPS (ships in 1 business day for in-stock items)
  • Installation note: Install in same original configuration and reuse existing cables and hardware

Benefits

These replacement UPS batteries are engineered to deliver long-lasting battery life and dependable power for your CyberPower RB1280X2B. With AGM sealed construction and SLA chemistry, the cells offer superior vibration resistance, low internal resistance for efficient charging, and leak-proof, maintenance-free operation. As a high-performance UPS battery option, this set meets or exceeds original manufacturer specifications to ensure consistent runtime and safe operation under load.

Durability is built in: the rugged sealed design and UL certification mean you can trust these batteries in home offices, small server closets, point-of-sale systems, and other mission-critical installations. Typical applications include UPS backup for networking and IT equipment, emergency lighting, telecommunications, and portable equipment that depends on a reliable 12V supply. Whether you need to replace aged batteries or prepare a spare set, this package gives you tested compatibility and real-world performance.

Installation is straightforward—follow your UPS manufacturer’s guidance and install the new CyberPower RB1280X2B replacement batteries in the original configuration, reusing the existing cables and hardware. Always verify dimensions before ordering as manufacturer requirements can change.

Ready to secure uninterrupted power for your CyberPower RB1280X2B? Order this high-performance replacement UPS battery pair now and enjoy a dependable, long-lasting battery solution backed by a 1-year warranty. If you have questions, contact our customer service via email, chat, or call toll-free at (800) 657-1303.

Technical Specifications

Voltage12 Volts
Amp Hours7.5 Ah
Terminal TypeF2
Length (in.)5.95
Width (in.)2.56
Height (in.)3.7
Weight (lb.)10.5

Product Highlights

  • Brand Replacement : SLA Battery
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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