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-15737

BSB DC12-40 High Performance Replacement Battery 29.14 lb

11% off
Sale price $150.99 USD Regular price $168.99
Shipping calculated at checkout.
Compatible replacement for BSB DC12-40 model
Absorbent Glass Mat (AGM) technology for enhanced performance
Maintenance-free and spill-proof design for hassle-free use
U.L. Recognized and CE Certified for safety and reliability
Includes 1 year warranty and factory fresh condition
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 | 40 Ah

Terminal Type

Nut & Bolt

BSB DC12-40 Replacement Battery - Compatible with BSB DC12-40

This BSB DC12-40 replacement battery is designed to directly replace the BSB DC12-40 model, offering reliable, maintenance-free power for a wide range of applications. Constructed with Absorbent Glass Mat (AGM) technology and sealed for safety, the 12V 40Ah SLA unit provides dependable runtime and consistent charging performance. It meets or exceeds OEM specifications and arrives brand new and factory fresh for immediate use.

Key Specifications

  • Compatible Model: BSB DC12-40
  • Replacement Brand: SigmasTek
  • Battery Type: Rechargeable Sealed Lead Acid (SLA)
  • Technology: Absorbent Glass Mat (AGM)
  • Voltage: 12 Volts
  • Capacity: 40 Ah
  • Terminal Type: Nut & Bolt
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty

Benefits

  • Robust construction: The AGM, spill-proof design makes this replacement battery resistant to leaks and suitable for varied orientations and environments.
  • Extended lifecycle: This long-lasting battery choice provides steady capacity and dependable recharge acceptance across repeated cycles, reducing replacement frequency.
  • Reliable performance: As a high-performance battery, the BSB DC12-40 replacement handles UPS loads, emergency backup, security systems, and power tools with steady discharge characteristics.
  • Maintenance-free: Sealed design removes electrolyte maintenance and simplifies installation and ownership.
  • Certified quality: U.L. recognition and CE certification provide verified manufacturing and safety standards for peace of mind.
  • Wide range of uses: Ideal for UPS backups, emergency lighting, alarm systems, mobility devices, medical devices, and other equipment specifying the BSB DC12-40.

Restore reliable power with this BSB DC12-40 replacement battery from SigmasTek. If you need a high-performance battery that also serves as a long-lasting battery solution for critical applications, this 12V 40Ah SLA unit is ready to ship with a 1 year warranty. Purchase now to ensure uninterrupted power and peace of mind.

Technical Specifications

Voltage12 Volts
Amp Hours40 Ah
Terminal TypeNut & Bolt
Length (in.)7.76
Width (in.)6.5
Height (in.)6.69
Weight (lb.)29.11

Product Highlights

  • Brand Replacement : BSB DC12-40 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.