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SigmasTek  |  SKU: BW-15827

National NB12-35 Compatible Replacement Battery 24.72 lb

17% off
New arrival
Sale price $122.99 USD Regular price $147.99
Shipping calculated at checkout.
Absorbent Glass Mat (AGM) technology for enhanced durability
Maintenance-free, spill-proof design for safe and hassle-free use
U.L. Recognized and CE Certified ensuring quality and reliability
Brand new and factory fresh for optimal performance
1-year warranty provides peace of mind and protection
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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

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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.


Volts & Amps

12 Volts | 35 AH

Terminal Type

Nut & Bolt

Replacement National Battery NB12-35 — Compatible with NB12-35

Replace your depleted pack with this reliable replacement battery for the National Battery NB12-35. Engineered to meet or exceed OEM SLA specifications, this unit offers full compatibility, consistent performance, and the safety features expected from a modern sealed lead acid battery. AGM technology and a maintenance-free, spill-proof design make it an ideal long-term power solution.

Key Specifications

  • Compatible Model: National Battery NB12-35
  • Brand: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 35 AH
  • 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
  • Terminals: Nut & Bolt

Benefits

This NB12-35 replacement battery provides the durability and reliable output required for mission-critical and everyday applications. AGM design means reduced maintenance and superior leak protection, while quality materials and manufacturing practices help deliver a longer useful life compared with older sealed lead acid designs.

  • Durability: Built to resist vibration and mechanical stress, offering a dependable power source in various environments.
  • Long Life: Designed for consistent recharge behavior and sustained capacity, making it a long-lasting battery choice.
  • High Performance: Stable discharge characteristics support sensitive electronics, alarm systems, and other critical loads.
  • Safety & Compliance: U.L. recognized and CE certified to meet applicable safety regulations and quality standards.
  • Typical Applications: Well-suited for UPS systems, emergency backup power, security and fire alarm systems, telecom gear, mobility applications, and tools that rely on SLA technology.

Ready to upgrade your NB12-35 power source? Order this replacement battery now to ensure dependable performance and receive a 1 year warranty with your purchase.

Technical Specifications

Voltage12 Volts
Amp Hours35 AH
Terminal TypeNut & Bolt
Length (in.)7.72
Width (in.)5.14
Height (in.)6.22
Weight (lb.)24.7

Product Highlights

  • Brand Replacement : National Battery NB12-35
  • Manufacturer: SigmasTek
  • Product Type: SLA Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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