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-13243

12 Volt 18 Amp NB High Rate Sealed Lead Acid Compatible Replacement Battery 12.69 lb

18% off
Sale price $55.99 USD Regular price $67.99
Shipping calculated at checkout.
12 Volt 18 Amp High Rate for reliable power output
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 quality assurance
Includes 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 | 18 Ah

Terminal Type

Nut & Bolt

12 Volt 18 Amp NB High Rate Sealed Lead Acid Battery — Compatible with Sealed Lead Acid 12 Volt 18 Amp HR model

This replacement battery is engineered to deliver dependable power for devices that require a robust Sealed Lead Acid 12 Volt 18 Amp HR model. The 12 Volt 18 Amp NB High Rate Sealed Lead Acid Rechargeable battery combines AGM technology, maintenance-free construction, and factory-fresh quality to provide a high-performance battery option you can trust. Designed to meet or exceed OEM SLA battery specifications, this replacement battery offers reliable, long-lasting battery performance for emergency systems, UPS units, and other mission-critical applications.

Key Specifications

  • Voltage: 12 Volts
  • Capacity: 18 Ah (Amp-hours)
  • Terminal Type: NB (Nut & Bolt)
  • Technology: Absorbent Glass Mat (AGM)
  • Design: Maintenance-Free, Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Brand: SigmasTek

Benefits

  • Durability: Built with AGM technology and spill-proof construction for rugged, maintenance-free operation in a variety of environments.
  • Long Life: Designed to provide dependable standby life and consistent cycle performance, offering a long-lasting battery solution for extended service life.
  • High Performance: A high-rate SLA design ensures strong discharge capability for devices that demand bursts of power, making it a true high-performance battery for critical loads.
  • Versatile Applications: Ideal for UPS systems, emergency lighting, security and fire alarm systems, medical equipment, portable power tools, and other emergency power and backup applications.
  • Compatibility & Reliability: Guaranteed 100% compatibility with Sealed Lead Acid 12 Volt 18 Amp HR model and meets or exceeds OEM specifications for worry-free replacement.

Replace your old or failing battery with this reliable 12 Volt 18 Amp NB High Rate replacement battery and get confident, long-lasting battery performance for critical systems. If you need a high-performance battery that combines durability and reliable power delivery, add this factory-fresh SigmasTek battery to your cart today and secure dependable backup power.

Technical Specifications

Voltage12 Volts
Amp Hours18 Ah
Terminal TypeNut & Bolt
Length (in.)7.13
Width (in.)3.0
Height (in.)6.59
Weight (lb.)12.68

Product Highlights

  • Brand Replacement : 12 Volt 18
  • Manufacturer: SigmasTek
  • Product Type: Heavy Duty Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • 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.