For questions, quotes, or help finding the right battery, feel free to email us at sales@batteryweb.com or give us a call at +1 817-210-3321

🎉 First Order Special 🎉

First-time shoppers get 5% OFF on batteries & accessories!

WELCOME5
SigmasTek  |  SKU: BW-13801

Newmox FNC-670 High Performance Compatible Replacement Battery

Sale price $8.99 USD Regular price $12.96
Shipping calculated at checkout.

➤ Compatible replacement for Newmox FNC-670 model

➤ Uses Absorbent Glass Mat (AGM) technology for reliable performance

➤ Maintenance-free with spill-proof, sealed construction

➤ U.L. Recognized and CE Certified for safety and quality

➤ Brand new, factory fresh with a 1-year warranty


📦🚀 FAST SHIPPING: Usually ships same day if ordered before 2 PM EST

⚠️ Quick Reminder

🔹 Please ensure the original battery model number is listed in our product description and that your device model number matches for compatibility.
🔹 We only supply the batteries shown in the images. Device images are provided for reference only.

📸 Send Your Battery Photo / Unsure? Expert 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 IMAGE

Battery Care Guide

Battery Usage and Maintenance Guidelines 🔋

Please read the following instructions carefully before using your new battery. Proper adherence will help ensure optimal performance and extended service life.

1. Cordless Phones, PDAs, and Power Tools (NiMH, NiCd, Lithium-Ion) 📱

Initial Charge

  • Fully charge the battery overnight prior to first use.

Conditioning (First 2–6 Charge Cycles)

  • Operate the device until the battery reaches approximately 20% capacity.
  • Avoid premature recharging.
  • Do not allow the battery to fully discharge during the initial cycles.

Post-Conditioning

  • Recharge the battery only when necessary.
  • These batteries are capable of approximately 500 charge cycles:
  • Once daily → ~500 days
    Twice daily → ~250 days
    Note: Even a partial recharge is considered a full cycle.

2. Sealed Lead Acid (SLA) Batteries 💡

  • No conditioning required.
  • Maintain the battery in a fully charged state; avoid complete discharge.
  • Capable of 300–400 charge cycles.
  • Expected service life: 2–3 years, depending on usage conditions.

3. Laptop Batteries (Lithium-Ion) 💻

Initial Charge

  • Fully charge the battery overnight prior to first use.

Conditioning (First 2–6 Charge Cycles)

  • Charge fully, then discharge to approximately 20% capacity.
  • Avoid complete discharge, as some devices may not detect a fully drained battery.

Post-Conditioning

  • Minimize frequent plugging and unplugging.
  • Allow the battery to discharge moderately at least once per month to maintain optimal performance.
  • Occasional cycling is recommended to sustain battery health.

Professional Recommendation

Adhering to these guidelines will enhance battery longevity and ensure reliable performance.

For further assistance regarding your battery or order, our customer support team is available to provide guidance.

Delivery and Shipping

Everything You Need to Know About Shipping with BatteryWeb (USA)

We know reliable delivery matters when you need power fast. Here’s how BatteryWeb makes shipping easy across the USA:

🚚 Shipping & Delivery

Most orders ship next business day (some products like sealed lead acid may take a little longer).

Same-day shipping available if you order before 11:59 AM (delivery depends on the carrier).

We ship nationwide using FedEx, UPS, USPS, DHL, and regional ground carriers.

Shipping costs are calculated automatically at checkout based on weight, distance, and carrier.

Transit times shown are estimates only (business days, no weekends/holidays).

🌍 Shipping Restrictions

Lithium batteries cannot be shipped by USPS or air. They must go via FedEx Ground, UPS Ground, or DHL Ground.

PO Box deliveries are only available via USPS.

At this time, we do not ship lithium batteries to Puerto Rico. NiMH, NiCd, and Alkaline can be shipped.

📦 Important Notes

Double-check your shipping address! If an incorrect address is used and the order is returned, re-shipping costs are the buyer’s responsibility.

If a product is temporarily out of stock, we’ll notify you right away with the expected restock date—or issue a refund if you prefer.

💲 Currency & Pricing

All prices are shown in USD.

Orders shipped outside the USA may be subject to local taxes, customs fees, or import duties. These are the buyer’s responsibility.

⚡ At BatteryWeb, we’re committed to getting your batteries delivered quickly, safely, and affordably—so you’ll always have the power you need, when you need it.

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.

🔹 Our products are generic replacement parts and are not affiliated with, endorsed by, or manufactured by the original equipment manufacturers (OEMs).


Volts & Amps

6 Volts | 7 AH

Terminal Type

F1

Newmox FNC-670 Replacement Battery — Compatible with Newmox FNC-670

The Newmox FNC-670 replacement battery is built to deliver dependable performance and straightforward compatibility with your Newmox FNC-670 equipment. This high-performance battery features AGM technology and a sealed, maintenance-free design that makes it safe, spill-proof, and low maintenance. Whether replacing an old pack or stocking spares, this unit is a dependable, long-lasting battery choice for a wide range of applications.

Key Specifications

  • Model: Newmox FNC-670 (replacement)
  • Compatible Model: FNC-670
  • Brand: SigmasTek (replacement)
  • Voltage: 6 Volts
  • Capacity: 7 AH
  • Terminal: F1
  • Battery Type: Sealed Lead Acid (SLA) / AGM
  • Technology: Absorbent Glass Mat (AGM)
  • Design: Maintenance-Free, Spill Proof
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year

Benefits

This Newmox FNC-670 replacement battery emphasizes durability and reliable output. AGM construction provides stable voltage under load and excellent resistance to vibration, while the sealed, maintenance-free format minimizes upkeep and eliminates acid spills. These features combine to create a dependable power source that maintains consistent performance over its service life.

Ideal for UPS backup, emergency lighting, alarm systems, telecommunication equipment, and small-scale power tools, this unit performs well in both standby and cyclic roles. The UL and CE certifications reflect adherence to established safety and quality standards, and the one-year warranty gives you added assurance of product reliability. As a cost-effective alternative to branded OEM batteries, this replacement unit restores the dependable runtime your systems need.

Whether you are a technician needing a quick swap or a homeowner maintaining essential systems, this high-performance battery helps ensure your devices continue to operate without interruption. Its compact form and F1 terminal layout make installation straightforward and fast.

Ready to upgrade to a long-lasting battery that won’t let you down? Purchase this Newmox FNC-670 replacement battery and restore reliable power today.


Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • 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.