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SigmasTek  |  SKU: BW-15285

National NB12-55 High Performance Replacement Battery 36.03 lb

11% off
New arrival
Sale price $209.99 USD Regular price $236.99
Shipping calculated at checkout.
Absorbent Glass Mat (AGM) technology for enhanced performance
Maintenance-free, spill-proof design for hassle-free use
U.L. recognized and CE certified for safety and quality assurance
Brand new, factory fresh to ensure reliability and longevity
1-year warranty for peace of mind and guaranteed durability
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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.

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⚠️ 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

Nut & Bolt

National Battery NB12-55 Replacement Battery — Compatible with National Battery NB12-55

For reliable backup and consistent power delivery, the National Battery NB12-55 replacement battery is engineered to meet or exceed the original SLA specifications. This replacement battery is ideal for applications that demand a dependable, maintenance-free power source. With proven AGM technology and recognized safety certifications, the NB12-55 replacement is a solid solution for everyday and emergency power needs.

Key Specifications

  • Compatible Model: National Battery NB12-55
  • Battery Type: Rechargeable Sealed Lead Acid (SLA)
  • 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: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 55 AH
  • Terminal Type: Nut & Bolt

Benefits

The National Battery NB12-55 replacement unit is built for durability and extended service life. AGM construction ensures a sealed, vibration-resistant battery that requires no regular maintenance, reducing operating cost and simplifying installation. As a high-performance battery, it offers reliable current delivery and efficient recharge characteristics, making it a go-to replacement battery for many critical systems.

This long-lasting battery is well suited for UPS systems, emergency lighting and power, security systems, medical devices, and a range of portable equipment and tools that require stable 12V power. The maintenance-free and spill-proof design is particularly beneficial for installations where accessibility is limited or where clean, safe operation is essential.

Certified to recognized standards (U.L. and CE) and supplied brand new with a 1 Year Warranty, the SigmasTek NB12-55 replacement battery provides peace of mind and dependable performance. Its 12 Volt, 55 AH rating and robust terminal connections ensure compatibility with the original NB12-55 specifications.

Ready to upgrade to a reliable replacement? Add the National Battery NB12-55 replacement battery to your cart today and secure a high-performance, long-lasting battery for your equipment.

Technical Specifications

Voltage12 Volts
Amp Hours55 AH
Terminal TypeNut & Bolt
Length (in.)9.04
Width (in.)5.45
Height (in.)8.15
Weight (lb.)36.0

Product Highlights

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

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