For questions, quotes, or help finding the right battery, feel free to email us at sales@batteryweb.com

New collections added! Learn more

🎉 First Order Special 🎉

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

WELCOME5
SigmasTek  |  SKU: BW-6400

Altronix AL1024ULACMCBJ High Capacity Alarm Replacement Battery Set

Sale price $116.86 USD Regular price $141.09
Shipping calculated at checkout.

➤ Compact size: 5.95" L x 3.86" W x 3.7" H

➤ Reliable 12 Volts power output

➤ High capacity 12 Ah for longer usage

➤ Durable F2 terminal type for secure connections

➤ Heavy-duty 33.08 lb weight ensures stability


📦🚀 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

12 Volts | 12 Ah

Terminal Type

F2

SigmasTek 12V 12Ah F2 Replacement Battery — Compatible with Altronix Security Alarm Systems

Designed for seamless compatibility with Altronix security alarm installations, the SigmasTek 12V 12Ah F2 replacement battery delivers reliable power when your system needs it most. This high-performance battery is engineered to provide steady output and dependable standby power for security panels, access control, and other critical devices. Built to meet the rigorous demands of safety and security applications, this long-lasting battery replacement provides peace of mind through consistent performance and robust construction.

Key Specifications

  • Manufacturer: SigmasTek
  • Brand Replacement: Altronix
  • Type: Security Alarm
  • Voltage: 12 Volts
  • Amp Hours: 12 Ah
  • Terminal Type: F2
  • Length (in.): 5.95
  • Width (in.): 3.86
  • Height (in.): 3.7
  • Weight (lb.): 33.08

Benefits

The SigmasTek 12V 12Ah F2 replacement battery is a high-performance battery solution optimized for durability and long service life. Constructed with quality cells and a robust housing, it withstands frequent charge/discharge cycles and maintains reliable capacity over time — making it a true long-lasting battery option for installations where uptime matters. Its F2 terminal provides a secure connection for standard alarm and power systems, ensuring minimal voltage drop and stable current delivery during both standby and discharge conditions.

This replacement battery is ideal for a broad range of applications: security alarm systems, access control panels, emergency lighting, UPS modules, and other standby power needs. As a high-performance battery, it supports consistent runtime for alarm panels and auxiliary loads, helping to keep surveillance, communications, and notification systems operational during power interruptions. Technicians and facility managers appreciate its predictable performance and compatibility with Altronix-equipped systems.

Maintenance is simple — the sealed design reduces the need for routine topping-up and helps prevent leakage, while the compact form factor (5.95" x 3.86" x 3.7") fits into standard battery compartments used by many security enclosures. When you need a dependable replacement battery that balances cost, performance, and reliability, the SigmasTek 12V 12Ah F2 is a practical choice.

Ready to upgrade your backup power? Add the SigmasTek 12V 12Ah F2 replacement battery to your cart now for dependable, long-lasting battery performance for your Altronix-compatible security system.


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.