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SigmasTek  |  SKU: BW-16144

National Battery NB12-26 High Performance Replacement Battery 18.1 lb

24% off
Sale price $111.99 USD Regular price $146.99
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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 for guaranteed quality
1-year warranty ensures peace of mind with purchase
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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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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.


Volts & Amps

12 Volts | 26 Ah

Terminal Type

Nut & Bolt

Replacement National Battery NB12-26 — Compatible with National Battery NB12-26

When your system needs a dependable power source, this replacement battery for the National Battery NB12-26 provides consistent, maintenance-free performance you can trust. Built using Absorbent Glass Mat (AGM) technology, the NB12-26 replacement combines reliability and safety with spill-proof construction, delivering a high-performance battery that fits directly into NB12-26 applications. Ideal for backup systems and portable equipment, this long-lasting battery is designed to meet or exceed OEM SLA specifications and bring your device back to full power.

Key Specifications

  • Model: NB12-26 (replacement for National Battery NB12-26)
  • Brand (original): National Battery
  • Replacement Brand: SigmasTek
  • Battery Type: Rechargeable Sealed Lead Acid (SLA)
  • Technology: Absorbent Glass Mat (AGM)
  • Voltage: 12 Volts
  • Capacity: 26 Ah
  • Terminals: Nut & Bolt
  • Design: Maintenance-Free, Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty

Benefits

  • Durability: Rugged AGM sealing reduces corrosion and protects internal components so the battery endures real-world installation conditions.
  • Long Life: Engineered for a long service life in both standby and cyclic applications, making it a true long-lasting battery replacement for your NB12-26 needs.
  • High Performance: Stable voltage output and strong cold-cranking ability for short bursts of high current demand ensure your critical devices stay powered when needed.
  • Maintenance-Free Convenience: The maintenance-free, spill-proof design allows safe indoor use and minimizes downtime for preventive upkeep.
  • Direct Fit Compatibility: Designed to meet or exceed OEM specifications so installation is straightforward with correct 12V 26Ah capacity and nut & bolt terminals.
  • Typical Applications: Perfect for UPS systems, emergency lighting, alarm systems, medical backup devices, mobility equipment, and various power tools requiring a dependable 12V SLA battery.
  • Certifications & Safety: U.L. recognition and CE marking provide extra confidence for residential, commercial, and industrial deployments.

Ready to replace your National Battery NB12-26 with a trusted, high-performance battery? Add this SigmasTek 12V 26Ah replacement battery to your cart now and secure reliable power backed by a 1 Year Warranty.

Technical Specifications

Voltage12 Volts
Amp Hours26 Ah
Terminal TypeNut & Bolt
Length (in.)6.56
Width (in.)6.97
Height (in.)4.92
Weight (lb.)18.08

Product Highlights

  • Brand Replacement : National Battery NB12-26
  • Manufacturer: SigmasTek
  • Product Type: SLA Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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