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SigmasTek  |  SKU: BW-13294

National NBX12-100 UPS High Performance Replacement Battery 17.42 lb

14% off
Sale price $121.99 USD Regular price $141.99
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Compatible replacement for National Battery NBX12-100 with high-rate discharge design
93 Watts per cell at 15-min rate ensures excellent UPS performance
Low self-discharge rate under 3% per month for up to 10 years standby life
Spill-proof, no-leak construction allows operation in any position
ABS flame retardant case with UL listing and 3-year warranty for safety and reliability
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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.

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Volts & Amps

12 Volts | 28 AH

Terminal Type

Internal Thread

National Battery NBX12-100 UPS Battery (Replacement) - Compatible with NBX12-100

The National Battery NBX12-100 replacement UPS battery is engineered to deliver superior performance in uninterruptible power supply (UPS) systems and other high-rate discharge applications. Designed as a high-performance battery option, the NBX12-100 offers strong power delivery (93 watts per cell on a 15-minute rate at 1.67 volts) and low self-discharge, making it an excellent replacement battery for installations that demand dependable standby and cycle endurance. This factory-fresh, UL-listed replacement meets rigorous quality standards and is built to give you long-lasting battery service.

Key Specifications

  • Model: National Battery NBX12-100 (Replacement)
  • Battery Type: Absorbent Glass Mat (AGM) Technology
  • Voltage: 12 Volts
  • Capacity: 28 AH
  • Power Rating: 93 Watts per cell on 15-minute rate at 1.67 Volts
  • Self-discharge Rate: Less than 3% per month
  • Expected Life (Standby Use): Up to 10 years
  • Cycle Life: Up to 300 cycles at 100% discharge in cycle service
  • Construction: Spill Proof / No-leak construction
  • Case Material: ABS (UL94 V-0) flame retardant case
  • Orientation: Can be operated in any position
  • Condition: Brand New, Factory Fresh
  • Warranty: 3 Year Warranty
  • Certifications: UL Listed
  • Terminal Type: Internal Thread

Benefits

  • Proven durability: AGM construction and a flame-retardant ABS case offer spill-proof, robust protection that stands up to demanding UPS and standby applications.
  • Long-lasting battery life: With an expected standby life of up to 10 years and low self-discharge, this replacement battery minimizes maintenance and replacement frequency.
  • High-performance battery output: The NBX12-100 delivers strong high-rate discharge performance (93 W per cell at the 15-minute rate), which is critical for UPS systems, emergency power, and other high-load scenarios.
  • Versatile service profile: Suitable for both standby use where long life is key and cycle service where up to 300 deep cycles are required—making this an ideal choice for data centers, telecom, and critical power installations.
  • Easy, safe installation: Spill-proof design and the ability to operate in any orientation reduce installation constraints and improve safety during handling and replacement.

Replace your aging UPS battery with the reliable National Battery NBX12-100 replacement battery today. Order now to secure a high-performance, long-lasting battery backed by a 3-year warranty and UL listing—perfect for keeping your critical systems powered and protected.

Technical Specifications

Voltage12 Volts
Amp Hours28 AH
Terminal TypeInternal Thread
Length (in.)6.46
Width (in.)4.92
Height (in.)6.77
Weight (lb.)17.4

Product Highlights

  • Brand Replacement : National Battery NBX12-100
  • Manufacturer: SigmasTek
  • Product Type: Heavy Duty Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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