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-6242

DSC Alarm Systems SB1240 High Capacity Compatible Replacement Battery 3.5 lb

25% off
Sale price $29.99 USD Regular price $39.99
Shipping calculated at checkout.
Meets or exceeds original OEM battery specifications for reliable performance
Valve regulated, spill-proof construction ensures safety and durability
U.L. Recognized and CE Certified for trusted quality and compliance
Rugged plastic case provides protection against impacts and wear
Includes 1 brand new, factory fresh SP12-5 (12V 5AH) battery 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 | 5 AH

Terminal Type

F1

Alarm Replacement Battery for DSC Alarm Systems SB1240

This replacement battery is tailored for the DSC SB1240 alarm system and is engineered to meet or exceed original manufacturer specifications. Featuring the SP12-5 (12 V 5 AH) cell, the unit provides consistent, reliable backup power to keep your alarm, access control, and security systems operational when mains power fails. Choose this high-performance battery for dependable protection and compatibility with your SB1240 equipment.

Key Specifications

  • Battery Model: SP12-5
  • Voltage: 12 V
  • Capacity: 5 AH
  • Quantity: 1 battery
  • Construction: Valve Regulated Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Case: Rugged Plastic Case And Cover
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Brand: SigmasTek

Benefits

  • Durability: Robust plastic housing and valve-regulated design reduce maintenance and risk of leakage in enclosed alarm cabinets.
  • Long Life: Engineered for reliable standby performance and extended shelf life, providing a long-lasting battery option for security systems.
  • High Performance: Delivers steady power to support alarm panels, sensors, and auxiliary devices during critical moments.
  • Certified Safety: U.L. recognition and CE certification ensure compliance with common safety and quality standards.
  • Recommended Uses: Perfect for home alarm systems, burglar and security alarm panels, access control installations, and small power supply backups.
  • Compatibility: Designed as a direct-fit replacement SP12-5 unit for the DSC SB1240 platform to simplify installation and ensure full compatibility.
  • Peace of Mind: Brand new, factory-fresh condition with a one-year warranty offers protection against defects and early failures.

Don’t compromise your security — replace aged or failing batteries with this reliable replacement battery for the SB1240. Order the SP12-5 12 V 5 AH unit now to secure fast shipping and maintain continuous protection for your property.

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 : DSC Alarm Systems
  • Manufacturer: SigmasTek
  • Product Type: Security Alarm
  • 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.