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-5679

Altronix EFLOW3NX/EFLOW6NX/EFLOW104NX 12V 12Ah Compatible Replacement Battery - 2 Pack 14.51 lb

21% off
Sale price $81.99 USD Regular price $103.99
Shipping calculated at checkout.
Guaranteed compatibility with Altronix EFLOW3NX, EFLOW6NX, and EFLOW104NX systems
Reliable 12V 12AH power backup for uninterrupted alarm system operation
Long-lasting, high-quality construction for extended service life
Maintenance-free, sealed design for easy installation and hassle-free use
Includes 2-pack for convenient replacement and extended protection
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 | 12 Ah

Terminal Type

F2

2-Pack 12V 12Ah Replacement Battery for Altronix EFLOW3NX / EFLOW6NX / EFLOW104NX

Ensure reliable backup power for your Altronix EFLOW3NX, EFLOW6NX, or EFLOW104NX systems with this 2-pack of 12V 12Ah replacement batteries. Engineered to meet or exceed OEM specifications, these sealed, maintenance-free batteries provide dependable performance in security, access control, and emergency power applications. This high-performance battery set offers the compatibility and longevity needed to safeguard your equipment and property.

Key Specifications

  • Compatible Models: Altronix EFLOW3NX, EFLOW6NX, EFLOW104NX
  • Pack Quantity: 2-pack
  • Voltage: 12 Volts
  • Capacity: 12 Ah
  • Terminal Type: F2
  • Brand: SigmasTek
  • Battery Type: Sealed and maintenance-free
  • Meets/Exceeds: OEM specifications for optimal performance

Benefits

This replacement battery pair offers a long-lasting battery option engineered for durability and steady output. The sealed SLA construction means no maintenance is required, reducing upkeep and the risk of electrolyte leakage inside sensitive control modules. As a high-performance battery choice, these cells supply consistent voltage under load and are built for repeated charge/discharge cycles typical of standby power systems.

Reliability: Meeting or exceeding OEM specs ensures these batteries deliver the fit and function Altronix systems expect, providing confidence for installers and end users alike. Durability: Robust internal construction and secure F2 terminals promote strong electrical connections and resistance to wear over time.

Typical applications include backup power for Altronix power supplies and control modules, UPS systems supporting network equipment, emergency lighting, access control, and other critical security infrastructure. The two-pack provides both immediate replacement capability and a spare for scheduled maintenance, helping minimize downtime and service calls.

Keep your Altronix EFLOW series systems protected — add this 2-pack of 12V 12Ah high-performance replacement batteries to your cart today and secure long-lasting backup power for your installation.

Technical Specifications

Voltage12 Volts
Amp Hours12 Ah
Terminal TypeF2
Length (in.)5.95
Width (in.)3.86
Height (in.)3.7
Weight (lb.)14.5

Product Highlights

  • Brand Replacement : 12V 12AH Replacement
  • Manufacturer: SigmasTek
  • Product Type: Security Alarm
  • 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.