Welcome to our store. Your trusted source for batteries and power solutions. Learn more

For support or quotes: sales@batteryweb.com

WELCOME5
SigmasTek  |  SKU: BW-2434

CyberPower RB1290X4 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.
Includes 4 new SigmasTek SP12-9HR batteries (12V 9AH)
Engineered for high rate discharge in CyberPower RB1290X4 UPS units
Valve regulated, spill-proof design for safe and clean operation
Low self-discharge ensures long shelf life and readiness
Certified by U.L. and CE for quality and safety assurance
In stock

— Ready to ship immediately

Free shipping

Visa Mastercard American Express PayPal Apple Pay Google Pay Shop Pay Discover Klarna Afterpay Stripe

Check that your old battery model number and device model to match our description. This makes sure they work together.


We ship your order same day if you buy it before 4 PM EST.

Send Your Battery Photo

Expert Technician Help

Snap a photo or video of your battery and send it to us. We'll identify the exact replacement—fast and hassle-free. Our team has helped thousands of customers find the right battery quickly and easily.

POST YOUR BATTERY IMAGE
Product & Solutions Expert

Product & Solutions Expert

✉ sales@batteryweb.com

🔹 10+ Years Battery Experience 🔹 Fast & Accurate Identification

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.

Disclaimer

⚠️ 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 | 9 AH

Terminal Type

F2

Replacement SigmasTek SP12-9HR Battery Set for CyberPower RB1290X4 UPS

This replacement UPS battery pack is tailored for the CyberPower RB1290X4, providing full compatibility and dependable backup power. The set includes four SigmasTek SP12-9HR batteries (12 Volts, 9 AH) and is crafted to deliver consistent performance for UPS systems, emergency power setups, and portable tools. Choose a long-lasting battery solution that keeps critical systems running through outages and power fluctuations.

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

  • Tough construction — Valve regulated, spill proof design combined with high vibration resistance provides dependable durability across many installation types.
  • Extended usability — Low self-discharge characteristics support shelf life and reduce the need for frequent maintenance, making this a practical long-lasting battery choice.
  • High-discharge capability — With a high rate discharge design, this high-performance UPS battery is ready to supply elevated power for short intervals when equipment demands surge.
  • Compliance and safety — U.L. recognition and CE certification ensure quality and adherence to recognized safety standards.
  • Versatile application — Ideal for Uninterruptible Power Supply (UPS) units such as the CyberPower RB1290X4, emergency power systems, and battery-powered tools that need reliable on-demand power.
  • New and tested — Brand new, factory fresh units are tested by our technical team to meet or exceed OEM specifications for dependable replacement performance.

Replace your old batteries with confidence—buy this replacement UPS battery set for the CyberPower RB1290X4 today to secure a high-performance UPS battery and long-lasting battery backup. Order now for fast dispatch and reliable protection.

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

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Bancontact
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.