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SigmasTek  |  SKU: BW-12886

National Power Corporation GT120S4 High Performance Replacement Battery 18.1 lb

15% off
Sale price $111.99 USD Regular price $131.99
Shipping calculated at checkout.
Replacement battery meets or exceeds OEM SLA specifications
Utilizes Absorbent Glass Mat (AGM) technology for enhanced performance
Maintenance-free and spill-proof design for safety and convenience
U.L. Recognized and CE Certified for reliable quality assurance
Includes 1-year warranty and factory fresh, brand new condition
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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

National Power Corporation GT120S4 Replacement Battery — Compatible with GT120S4

This National Power Corporation GT120S4 replacement battery is a purpose-built, high-performance battery solution for emergency lighting and related life-safety equipment. Engineered for compatibility with the GT120S4 model, this replacement battery delivers dependable performance, maintenance-free operation and spill-proof safety — making it a top choice for facility managers who require a long-lasting battery backed by clear specifications and certification.

Key Specifications

  • Model: National Power Corporation GT120S4 (replacement)
  • Battery Technology: Absorbent Glass Mat (AGM) Technology
  • Design: Maintenance-free design
  • Construction: 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: 26 Ah
  • Terminal Type: Nut & Bolt

Benefits

  • Durability: AGM construction provides robust, vibration-resistant performance and resists leakage — a reliable long-lasting battery option for installed emergency systems.
  • High Performance: Designed specifically to meet or exceed OEM SLA specifications for the GT120S4, ensuring consistent output under emergency loads.
  • Maintenance-Free: AGM sealed design eliminates the need for routine electrolyte checks or refilling, reducing maintenance time and cost.
  • Safety & Compliance: UL recognition and CE certification give confidence when deploying in commercial, institutional and regulated environments.
  • Versatile Applications: Ideal for emergency lighting, security alarms, fire alarm systems, consumer electronics, medical equipment, UPS support and other backup power applications.
  • Easy Installation: Standard 12V, 26Ah capacity and nut & bolt terminals offer straightforward, secure connections in field replacements.
  • Value & Support: Sold factory fresh with a 1-year warranty and customer service support to help ensure the correct replacement battery for your GT120S4 system.

Ready to restore reliable backup power? Order this National Power Corporation GT120S4 replacement battery today. Choose a high-performance battery that delivers the dependable, long-lasting battery performance your emergency lighting and safety systems demand — buy now and get fast service and expert support.

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 Power Corporation
  • Manufacturer: SigmasTek
  • Product Type: Emergency Power
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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