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Brightway Group  |  SKU: BW-17121

National NB12-55IT High Performance Replacement Battery 35.23 lb

Sale price $177.61 USD Regular price $177.72
Shipping calculated at checkout.
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
Brand new, factory fresh to ensure maximum lifespan
1-year warranty for peace of mind and guaranteed quality
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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.

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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 | 55 AH

Terminal Type

Internal Thread

National Battery NB12-55IT (Replacement) - Compatible with National Battery NB12-55IT Models

The National Battery NB12-55IT replacement battery is a factory-new, fully compatible option designed to meet or exceed OEM SLA specifications. Built with AGM technology and a maintenance-free, spill-proof design, this high-performance battery provides reliable power for standby and cycling needs. If you’re seeking a dependable, long-lasting battery for your National Battery NB12-55IT model, this replacement is engineered for compatibility and consistent performance.

Key Specifications

  • Model: National Battery NB12-55IT (Replacement)
  • Voltage: 12 Volts
  • Capacity: 55 AH
  • Terminal: IT / Internal Thread
  • Technology: Absorbent Glass Mat (AGM)
  • Design: Maintenance-free with spill proof construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand new, factory fresh
  • Warranty: 1 Year Warranty
  • Brand / Seller: Brightway Group

Benefits

This National Battery NB12-55IT replacement battery provides robust, long-term performance for a broad spectrum of applications. AGM construction yields a stable internal structure that supports frequent cycling and rapid recharge, delivering a long-lasting battery experience with minimal maintenance. The sealed, spill-proof design protects equipment and allows safe indoor installation.

As a high-performance battery solution, it offers dependable voltage stability and reliable discharge characteristics—critical for UPS systems, emergency lighting, fire and security alarms, medical equipment, and consumer electronics. It’s also suitable for emergency power setups and portable tools where consistent power delivery is required.

U.L. Recognition and CE Certification reinforce the product’s safety and quality credentials, while the one-year warranty gives added assurance of a worry-free purchase. Being brand new and factory fresh, this replacement battery delivers the reliability you expect when restoring critical systems to full operation.

Replace your old battery with the National Battery NB12-55IT replacement battery today and get a high-performance, long-lasting battery backed by certification and a one-year warranty. Order now to restore dependable power fast.

Technical Specifications

Voltage12 Volts
Amp Hours55 AH
Terminal TypeInternal Thread
Length (in.)9.04
Width (in.)5.45
Height (in.)8.15
Weight (lb.)35.2

Product Highlights

  • Brand Replacement : National Battery NB12-55IT
  • Manufacturer: Brightway Group
  • Product Type: SLA Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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