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-1844

UPS12-9 UPS High Performance Compatible Replacement Battery Set - 12-Pack 71.95 lb

20% off
New arrival
Sale price $369.99 USD Regular price $461.99
Shipping calculated at checkout.
Includes 12 brand new SigmasTek UPS12-9 batteries (12V 9AH)
High rate discharge design for reliable UPS performance
Valve regulated, spill-proof to prevent leaks and spills
Low self-discharge and high vibration resistance
U.L. recognized and CE certified with 1-year warranty
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

SigmasTek UPS12-9 (T2) - Set of 12 Replacement Batteries (12V 9AH)

This set of twelve SigmasTek UPS12-9 (T2) batteries is the right choice when you need a complete replacement battery string or a multi-battery refresh for modular UPS systems. Each 12 Volt 9 AH battery is brand new and built for consistent performance and reliability. These replacement UPS battery units are engineered to deliver the output and longevity required by critical power systems, offering a balanced solution for medium-sized UPS installations and maintenance projects.

Key Specifications

  • Quantity: 12 SigmasTek batteries
  • Model: UPS12-9 (T2)
  • Brand: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 9 AH
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction (maintenance-free)
  • Self-discharge: Low Self-discharge
  • Durability: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Connection Note: Use all existing cables and hardware from your original configuration to connect these batteries
  • Shipping: In-stock orders typically ship within 24 hours

Benefits

The SigmasTek UPS12-9 (T2) 12-pack offers a combination of durability and efficiency. High vibration resistance and a valve-regulated spill-proof design ensure these batteries are suitable for installation in racks and enclosed UPS modules without special maintenance. Their high rate discharge capability makes them particularly effective as a high-performance UPS battery in applications demanding brief, intense power output. Low self-discharge preserves stored energy during standby, making this set a practical long-lasting battery replacement for seasonal or infrequently cycled systems.

Ideal for Uninterruptible Power Supply (UPS) units, Emergency Power Supply setups, and battery-powered tools, these batteries are factory-tested and meet recognized safety standards (U.L. Recognized and CE Certified). A one-year warranty provides added confidence for facility managers and technicians replacing battery strings. Because these are brand new, factory-fresh cells, they are ready to be integrated using your existing cables and hardware—no additional connectors required.

Replace your aging UPS12-9 (T2) cells with this dependable 12-pack of SigmasTek 12V 9AH batteries today. Order now to secure a dependable, high-quality replacement UPS battery solution with fast fulfillment.

Technical Specifications

Voltage12 Volts
Amp Hours9 AH
Terminal TypeF2
Length (in.)5.95
Width (in.)2.56
Height (in.)3.7
Weight (lb.)71.88

Product Highlights

  • Brand Replacement : UPS12-9 UPS
  • 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.