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SigmasTek  |  SKU: BW-15684

Newmox FNC-12420 High Performance Replacement Battery 29.14 lb

12% off
New arrival
Sale price $150.99 USD Regular price $171.99
Shipping calculated at checkout.
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 and factory fresh to ensure maximum lifespan
Includes 1-year warranty for peace of mind
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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 | 40 Ah

Terminal Type

Nut & Bolt

Newmox FNC-12420 Replacement Battery — Compatible with Newmox FNC-12420

Replace your worn Newmox FNC-12420 with a replacement battery that meets or exceeds OEM specifications. This sealed lead acid solution offers the reliability and performance you need for critical systems. The Newmox FNC-12420 replacement is a high-performance battery designed to deliver consistent voltage, reliable standby power, and maintenance-free convenience so you can rely on it in demanding conditions.

Key Specifications

  • Compatible Model: Newmox FNC-12420
  • Replacement Brand: SigmasTek
  • Chemistry: Rechargeable Sealed Lead Acid (SLA)
  • Technology: Absorbent Glass Mat (AGM)
  • Voltage: 12 Volts
  • Capacity: 40 Ah
  • Terminal Type: Nut & Bolt
  • Design: Maintenance-Free with Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year

Benefits

Built to provide a long-lasting battery option for Newmox FNC-12420 users, this unit emphasizes durability and dependable performance. AGM technology improves charge acceptance and reduces internal resistance, which translates into better efficiency and longer cycle life. As a maintenance-free, spill-proof battery, it lowers upkeep requirements and minimizes downtime for mission-critical systems.

The Newmox FNC-12420 replacement battery performs exceptionally in a range of applications including UPS and emergency backup systems, security and alarm panels, telecom infrastructure, and portable power tools. Its 40 Ah capacity at 12 volts supports extended runtime and stable output under float and cyclic conditions. Nut & bolt terminals ensure a solid, vibration-resistant connection for installations where reliability matters.

Quality and safety are assured through U.L. recognition and CE certification. Each battery is brand new and factory fresh, inspected and packaged to deliver consistent, predictable performance out of the box. A 1 year warranty backs your purchase, giving you added peace of mind when choosing this replacement battery for your Newmox system.

Don’t wait until power failure disrupts operations—buy this Newmox FNC-12420 replacement battery now for a high-performance, long-lasting battery solution. Order today and experience reliable backup power with fast shipping and competitive pricing.

Technical Specifications

Voltage12 Volts
Amp Hours40 Ah
Terminal TypeNut & Bolt
Length (in.)7.76
Width (in.)6.5
Height (in.)6.69
Weight (lb.)29.11

Product Highlights

  • Brand Replacement : Newmox FNC-12420 Battery
  • Manufacturer: SigmasTek
  • Product Type: SLA Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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