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SigmasTek  |  SKU: BW-2433

CyberPower RB1290X4A High Performance Compatible Replacement SLA Battery 23.98 lb

23% off
New arrival
Sale price $130.99 USD Regular price $169.99
Shipping calculated at checkout.
Comes with 4 factory fresh SigmasTek SP12-9HR batteries (12V 9AH)
High rate discharge design ideal for CyberPower RB1290X4A UPS units
Spill-proof, valve regulated construction for maintenance-free use
Tested to meet or exceed OEM specifications for reliability
Includes 1-year warranty for added protection
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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.

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Volts & Amps

12 Volts | 9 AH

Terminal Type

F2

Replacement SigmasTek SP12-9HR Battery Set for CyberPower RB1290X4A UPS

Restore reliable backup power for your CyberPower RB1290X4A with this replacement UPS battery set. The pack includes four SigmasTek SP12-9HR batteries (12 Volts, 9 AH) engineered for dependable compatibility and superior performance. Whether protecting systems in small offices or home networks, this long-lasting battery option helps ensure continuous operation during outages and high-load events.

Key Specifications

  • Quantity: 4 batteries per set
  • Battery Model: SigmasTek SP12-9HR
  • Voltage: 12 Volts
  • Capacity: 9 AH (Amp-hours)
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Feature: Low Self-discharge
  • Feature: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Product Marking: SigmasTek12 Volts9 AHF2SLA Batteries
  • Installation Note: Use all existing cables and hardware from your original configuration to connect the new UPS batteries

Benefits

  • Reliable durability — Constructed with valve-regulated, spill-proof technology and high vibration resistance for robust, trouble-free service.
  • Extended service life — Low self-discharge helps preserve stored charge and contributes to a long-lasting battery that requires less frequent replacement.
  • Peak performance — The high rate discharge design provides the extra power needed for brief, intensive loads, making it a trusted high-performance UPS battery.
  • Certified quality — U.L. recognized and CE certified for confidence in safety and manufacturing standards.
  • Practical uses — Specifically suited for Uninterruptible Power Supply (UPS) units like the CyberPower RB1290X4A, emergency power supplies, and battery-powered tools that demand immediate backup power.
  • Factory-fresh assurance — Each battery set is brand new and factory tested to meet or exceed OEM specifications for a seamless replacement experience.

Ready to upgrade your backup power? Purchase this replacement UPS battery set for the CyberPower RB1290X4A now to secure a high-performance UPS battery and a dependable, long-lasting battery solution. Order today for prompt shipment and peace of mind.

Technical Specifications

Voltage12 Volts
Amp Hours9 AH
Terminal TypeF2
Length (in.)5.95
Width (in.)2.56
Height (in.)3.7
Weight (lb.)23.96

Product Highlights

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

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