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SigmasTek  |  SKU: BW-2432

CyberPower RB1290X4B High Performance Compatible Replacement SLA Battery 23.98 lb

19% off
New arrival
Sale price $130.99 USD Regular price $160.99
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Includes 4 brand new SigmasTek SP12-9HR batteries (12V 9AH)
Designed for high rate discharge in CyberPower RB1290X4B UPS units
Valve regulated and spill-proof for safe handling and installation
Low self-discharge extends battery life during storage
U.L. recognized and CE certified for dependable performance
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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 RB1290X4B UPS

Designed for the CyberPower RB1290X4B, this replacement UPS battery pack restores essential backup power with dependable compatibility and robust performance. The set contains four SigmasTek SP12-9HR batteries (12 Volts, 9 AH) and is ideal for restoring runtime to UPS systems that support critical infrastructure. Choose this high-performance UPS battery to maintain continuity for servers, network gear, and emergency systems.

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

  • Built to last — Valve-regulated, spill-proof construction and high vibration resistance provide rugged durability and reliable service life in a variety of settings.
  • Long-lasting battery performance — Low self-discharge extends shelf life and reduces maintenance needs, delivering a longer usable life between replacements.
  • High output when needed — The high rate discharge design makes this a high-performance UPS battery capable of supplying short bursts of elevated power for sudden load demands.
  • Safety and compliance — U.L. recognition and CE certification confirm adherence to recognized safety and manufacturing standards.
  • Versatile applications — Ideal for Uninterruptible Power Supply (UPS) units such as the CyberPower RB1290X4B, emergency power systems, and battery-powered tools requiring dependable backup power.
  • Factory fresh and tested — Each replacement set is brand new and factory fresh, with technical testing to ensure OEM-level reliability and performance.

Don’t wait until your next power event—buy this replacement UPS battery for the CyberPower RB1290X4B now to secure a high-performance UPS battery and a long-lasting battery solution. Order today for fast shipping and dependable backup power.

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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