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-15453

Ultratech UT-1240 Long-Life Replacement Battery 3.5 lb

19% off
Sale price $29.99 USD Regular price $36.99
Shipping calculated at checkout.
Absorbent Glass Mat (AGM) technology for enhanced performance
Maintenance-free with spill-proof design for safety and convenience
U.L. recognized and CE certified for reliable quality assurance
Brand new and factory fresh for optimal battery life
Backed by a 1-year warranty for peace of mind
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 | 5 AH

Terminal Type

F1

Ultratech UT-1240 Replacement Battery — Compatible with Ultratech UT-1240

This replacement battery is engineered for full compatibility with the Ultratech UT-1240 model, delivering dependable performance and reliable power when you need it most. Built as a sealed lead acid (SLA) rechargeable unit with Absorbent Glass Mat (AGM) construction, this high-performance battery replacement offers maintenance-free operation and spill-proof safety. If you need a long-lasting battery that meets or exceeds OEM specifications, the Ultratech UT-1240 replacement is an excellent choice for critical backup systems, portable equipment, and everyday power needs.

Key Specifications

  • Compatible Model: Ultratech UT-1240
  • Battery Type: Sealed Lead Acid (SLA) rechargeable
  • Technology: Absorbent Glass Mat (AGM)
  • Design: Maintenance-Free with Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Brand: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 5 AH
  • Terminal/Designation: F1
  • Warranty: 1 Year Warranty

Benefits

Designed as a high-quality replacement battery for the Ultratech UT-1240, this unit combines proven AGM technology with a maintenance-free, spill-proof design for worry-free use. AGM construction improves vibration resistance, reduces internal resistance for efficient charging and discharging, and helps extend service life — making it a true long-lasting battery option for demanding applications. As a high-performance battery, it provides consistent output and reliable runtime for devices that require uninterrupted power.

The sealed design and UL/CE recognition mean you can install this replacement battery in a wide variety of environments with confidence. Typical uses include UPS and emergency backup systems, alarm and security equipment, medical monitoring devices, mobility scooters, and portable tools. Wherever dependable SLA power is required, the Ultratech UT-1240 replacement offers the durability and stable performance professionals expect.

Because it arrives factory-fresh and backed by a 1 year warranty, you get the reassurance of new-condition reliability and manufacturer support. The SigmasTek-branded unit meets or exceeds OEM SLA specifications, ensuring a drop-in replacement experience with the Ultratech UT-1240.

Ready to restore reliable power? Add this Ultratech UT-1240 replacement battery to your cart now and enjoy a high-performance, long-lasting battery solution backed by a 1 year warranty.

Technical Specifications

Voltage12 Volts
Amp Hours5 AH
Terminal TypeF1
Length (in.)3.54
Width (in.)2.76
Height (in.)3.98
Weight (lb.)3.5

Product Highlights

  • Brand Replacement : Ultratech UT-1240 Battery
  • Manufacturer: SigmasTek
  • Product Type: SLA 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.