Welcome to our store. Your trusted source for batteries and power solutions. Learn more

For support or quotes: sales@batteryweb.com

WELCOME5
SigmasTek  |  SKU: BW-15821

Newmox FNC-12340 Premium Replacement Battery 24.72 lb

20% off
New arrival
Sale price $122.99 USD Regular price $153.99
Shipping calculated at checkout.
Absorbent Glass Mat (AGM) technology for enhanced durability
Maintenance-free with spill-proof, sealed design
U.L. recognized and CE certified for safety and quality
100% compatible replacement for Newmox FNC-12340 model
Includes 1-year warranty for reliable performance assurance
In stock

— Ready to ship immediately

Free shipping

Visa Mastercard American Express PayPal Apple Pay Google Pay Shop Pay Discover Klarna Afterpay Stripe

Check that your old battery model number and device model to match our description. This makes sure they work together.


We ship your order same day if you buy it before 4 PM EST.

Send Your Battery Photo

Expert Technician Help

Snap a photo or video of your battery and send it to us. We'll identify the exact replacement—fast and hassle-free. Our team has helped thousands of customers find the right battery quickly and easily.

POST YOUR BATTERY IMAGE
Product & Solutions Expert

Product & Solutions Expert

✉ sales@batteryweb.com

🔹 10+ Years Battery Experience 🔹 Fast & Accurate Identification

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.

Disclaimer

⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

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


Volts & Amps

12 Volts | 35 AH

Terminal Type

Nut & Bolt

Newmox FNC-12340 Replacement Battery — Compatible with Newmox FNC-12340

Restore dependable power with the Newmox FNC-12340 replacement battery, engineered to meet or exceed original equipment specifications. This rechargeable Sealed Lead Acid (SLA) battery features Absorbent Glass Mat (AGM) technology for consistent charging and maintenance-free operation. If you need a high-performance battery that offers reliable standby power and long service life, this long-lasting battery is ideal for UPS systems, emergency backup, and a variety of professional and consumer applications.

Key Specifications

  • Model Compatibility: Newmox FNC-12340
  • Battery Type: Rechargeable Sealed Lead Acid (SLA)
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Design: Maintenance-Free with Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Voltage: 12 Volts
  • Capacity: 35 AH
  • Terminal Type: Nut & Bolt
  • Brand: SigmasTek (replacement)
  • Warranty: 1 Year

Benefits

  • Durability: AGM construction enhances structural integrity and minimizes the risk of leaks, providing a reliable replacement battery for harsh environments.
  • Long Life: Designed for slow self-discharge and consistent recharge cycles, this long-lasting battery reduces the frequency of replacements.
  • High Performance: Offers steady power delivery for critical devices such as UPS units, emergency lighting, and communication equipment.
  • Maintenance-Free: The sealed, spill-proof design eliminates the need for routine fluid checks, simplifying maintenance in installed systems.
  • Safety & Compliance: U.L. recognition and CE certification ensure adherence to recognized safety and performance standards.
  • Versatile Uses: Well-suited for UPS backup, emergency systems, alarm panels, power tools, and other standby or cyclic applications requiring dependable SLA performance.
  • OEM-Grade Fit: Manufactured to meet or exceed the Newmox FNC-12340 specifications for proper fit and reliable operation.

Don’t wait until a power failure disrupts operations—order the Newmox FNC-12340 replacement battery now to secure a long-lasting, high-performance battery that restores reliability to your systems.

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 : Newmox FNC-12340 Battery
  • Manufacturer: SigmasTek
  • Product Type: SLA Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Bancontact
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.